Honestly I think the vast majority of people on the left would agree with most of what you said. A lot of the corporate rainbow flag waving is pretty performative and cringe.

The whole pronoun thing is pretty simple really, just don't say "he" to someone who says "I'm a she". That's really all there is to it. 99% of the the time you can tell whether someone is a he or a she. Sometimes it's not obvious, or you might get it wrong. As long as the other person can say "hey I'm a he actually" and you respond with "Oh my bad bro", then you are all good.

I know there are some people out there who try to make the pronoun thing into some huge deal but that's really all it is. I know plenty of trans people and non-binary people and they're all chill, they just don't want to be called by the wrong thing. And honestly, neither do I!