Yet you would disagree here?
I had to think about this, and I think I don’t disagree, but I think there’s more to it and that we are thinking slightly differently about some things. I’m going to start near the end and work backwards:
Do you think that "male" means to people (people who use it to mean things other than actually "male"!) an utterly random collection of things, varying from person to person? Do they get confused about other meanings of words too, is it a lexical thing?
Your understanding of the concept ‘masculine’ is I think the same as mine; it’s something which changes over time and geography and means different things to different people; a nominalistic view. I think all concepts / words are like this. It’s not utterly random, but they mean different things to different people and vary across time and geography. Sometimes people aren’t even aware they think differently to each other.
When it comes to the word ‘male’, and forgetting about trans men for the moment, you can have two people who both think male refers to people with certain body characteristics, and who both agree on who they think is male, but whose understanding of ‘male’ is different to each other. Day to day it’s not something which needs thinking about, and a lot of people won’t have given it any thought.
Someone who essentializes male is likely to think there is an essential something (essence) which links all male people (they may not be sure what that something is, but they’ll believe there is something essential); that people are male or they aren’t based on whether they have the essence, and that there is a hard boundary, as someone either has the essence or not; that the body characteristics they observe are signs of the essence; it’s black and white and immutable.
Someone with a nominalistic view of male would not believe in an essence linking all male people. They may still categorise people as male based on the body characteristics they observe, but they wouldn’t believe those body characteristics are signs of a male essence, shared by all male people. They would consider that they are simply labelling people male (assigning people to a male category) based on observations. There would be a gray / fuzzy boundary to the category, and it would vary across people, geography and time. On the face of it it would seem like the nominalist and essentialist were thinking the same way, as most of the time they might categorise people the same, but their understanding of male, and beliefs about reality are actually quite different, even though at a simple dictionary level they might have the same definition of male.
Many people think they are male or female, based on their body, but haven’t thought about what they think that means to them in the above level of detail. It’s not that they’ve misattributed / misunderstood the word, just that there are degrees of thinking that aren’t necessary for day to day life. They may be influenced by people around them with an essentialist understanding, and repeat that interpretation of male without really thinking about it (like trans people sometimes repeat things they hear without really thinking about it)
I have a nominalistic view, because I believe there is continuous evolution, where there are differences between individuals categorised as male. The essentialist understanding of male isn’t compatible with evolution, because male needs to be different across individual people for evolution to be possible.
The point is that even people who aren’t transgender often have the thought they are male / female without having thought what they think it means in detail, and without misunderstanding the words.
I think that when people are using the word "male" to refer to anything except male bodies (or cables) they usually mean sex stereotypes.
I think that’s probably right, at least when they are describing doing things in a ‘male’ way, etc.
I still think that the most likely explanation is that people conflate "male" and "masculine" - I have seen this happen nearly on a daily basis - and therefore that being male-bodied means you have a certain grouping of psychological characteristics (broadly described as "masculine" although clearly this changes over time and geography).
I don’t know how people form ideas about themselves exactly (I’m not sure anyone knows). My thinking is there must be common mechanisms for everyone.
I’ve noticed as well that some people conflate masculine and male, and it does seem to be a factor for some people. I think though that it’s not specific to trans people; it seems more a reflection of essentialist thinking about ‘male’.
I think another factor is that people are inspired by the people around them, whether they are male or female, and nothing to do with stereotypes or masculinity or femininity, but people aspire to be like the people who inspire them. I have no idea how it would work, but my sense is that somehow, probably subconsciously, that could lead to incorporating a sense / thought of being male / female, not just a desire to be.
My view is that the body and mind are one thing. So, your thoughts and sense of consciousness aren’t separate from your body and are themselves biological. It seems likely that there would be biological aspects about sense of identity / self / consciousness that aren’t yet understood, and that vary between people (not in an essentialised male / female way in my view though) and which play a factor as well.
Ok, I think I'm getting there. So they've heard a word, not understood what it meant but decided that it probably means one of their own characteristics... like if lots of people called me "shy", and I thought, oh I'm a Saggitarius, and I've noticed other Saggitarius people being called "shy", so shy must be something to do with the month you were born in. A misattribution of the word.
**
But at some point I'm going to realise what shy means and that I've been using it wrongly. Except, I suppose, if it had been decreed that asking what shy was was a social faux-pas, marked you out as a bigot and that actually being shy meant 'anyone who felt they were shy' - you're never going to clock that everyone is in fact using the word "shy" to mean utterly different things.
Getting back to the beginning. So, I think it’s a bit like this sometimes yes, but I wouldn’t say they misunderstood a word. Rather, they heard a word, and they heard what someone else thinks it means, but they haven’t always thought for themselves what they think it means; whether they agree, or whether the meaning they heard is compatible with other beliefs they may have. That takes time; people need to hear different ways in which people think, and do their own thinking. Like you say that’s not easy when they are worried about social faux pas, and offending people with strong views.
I think it’s the same with anything, any concept really; you can see the same processes happening with lots of things. There isn’t enough education in my view, and education is difficult and opposed by some people due to strong views. There is extra risk for people struggling with sex / gender, due to medicalisation and inadequate education. They may make medical choices based on their understanding at one time, and then later come to view those choices as incorrect as their understanding changes. That said, you could say the same about any medical choices really. Space for people to be open and full participants in society, without being pressured, by society, into medicalisation is important I think.