Astraia I didn't mean everyone was "ok" with it, more that everyone uses it. So in class discussions and when talking about various intersections of privilege/oppression, we use 'cis' to differentiate from trans identities. My friends use cis in any situation where we mention our identity (which doesn't happen a ton but occasionally)
Assassinated "you understand that some women find it offensive to be told that we are ok with harmful gender constructs that have been (and continue to be) used to oppress women?"
I don't agree that that is what cis means, so for me it's people getting angry because they don't understand the definition of a word and they are angry about the false definition. However, as I am more used to cis being used in a different way in my day-to-day life, I realise that many people to believe that they are using the correct definition, just like I do.
For me, and for many of my friends (both trans and cis) gender-identity is not the same as gender expression, gender expression being the 'stereotypical' constructs and expectations. For us, gender ID is the innate feeling of being male or female. If that feeling matches your body parts then you may choose to describe yourself as cis, if it does not you may choose to describe yourself as trans.
For me, it's just about what you feel is important about yourself and what you want other people to know. I don't always feel that "cis" is a big part of my identity, so I don't always use it, but in discussions around trans issues I will clarify that I am coming at things from the POV of a cis person and so may well be ignorant of some of the issues. That's just a thing that we do a lot at uni, when debating things with people who have varied experiences.