You’re c** if you feel comfortable with the gender identity that matches the gender you were born with. So if you’re born a woman and you live as a woman, you’re described as c**. The prefix doesn’t come out in terms of trying to insult or denigrate, it’s simply a term to describe non-trans people. The issue is that some LGB people do struggle with gender identity, so there are some legitimate concerns within the community that it isn’t representative of everybody, which is fair enough and something will inevitably come up that’s better.
as so often in these cases, people who are offended by anything and everything don't seem to mind offending others whilst also deciding whether someone has the right to be offended by what they say - as gammon refers to elderly white men then it's both racist and ageist - cis is also deemed offensive - so whilst you're preaching about what offends you please be aware that you are also offending people with the language you use - unfortunately this is how todays intolerant virtue signalling society works - it's not all one way as some would like it to be