crappymummy I repeat, it is interesting that you chose gendered slurs to make your point, and not racist, homophobic or transphobic ones
Maybe because I had just been accused of being sexist, and not racist, homophobic, or transphobic. But I know what many of the slurs for these groups are and mean also, as do you. And that knowledge does not make either of us any of these things. Especially if we would not use them ourselves.
given that 'man' is also used to signify one gender, then yes, to include me in that group misgenders me, regardless of intent
Not when it isn't being used to signify the gender. Then it is no more asserting that you are a man in the gender sense than it is asserting this of me.
And once again I have not or would not use man with this meaning. I just know it exists and mentioned it only to say that as yet XY-people have no exclusive label.
the fact that 'man' has been used historically to erase women does not render it any less oppressive a use of language
the idea that some people still use it in this way, or that they 'mean no harm' does not excuse it from being harmful
It may well be oppressive, harmful and so on. That is why many people use humans and humankind instead. Maybe one day all the dictionaries will list the old meaning under "archaic", rather than some of them just having a note that this usage can be "problematic".