Some right wingers see gender as innate and believe people should change their behaviour to correlate with their birth sex.
Some left wingers see gender as innate and believe people should change their bodies to correlate with their preferred gender role.
Feminists (the real ones) do not believe gender is innate and think people should accept their bodies and express themselves however they like.
That is summed up absolutely perfectly. No one (or at least I don't) has a problem with men wearing whatever they want, acting however they want, being called she, etc. The problem is purely and solely with the infringement on women's rights when self-identifying men are treated as legal women. I find I get maybe 5 words into that statement until I'm shouted down though.
When I apologised for him being upset
That's it in a nutshell.
Why should you take responsibility for his temper tantrum?
I know, it's strange but I felt really guilty. I left the pub after he stormed out and met another old friend (one I'm seeing) and he said to text before it all got out of hand and there was no going back, so I thought he was right and the friend would also apologise. My other (female) friend who was there during the argument told me later she thought I was stupid to have apologised. I still feel really guilty about it, I'm scared I was over the top in my argument or aggressive or something. I can't believe he'd walk out just because of a difference of opinion.