I really feel like the old fight is over. I openly walked hand in hand with my boyfriend in 1996 in Sydney and didn't even get strange looks let alone shouting or hitting
Boys who acted gay in my all boys high school in the 90s did get bullied for acting gay about as much as I got bullied for having the wrong accent, so pretty bad.
I think it's fair for the youth today to try and improve less significant issues when they feel safe, and I don't think I have seen people told off for using they/them/themself when they don't know someone's pronouns because they have never met before
It's also the trans people who are getting overt threats from the US government more so than gays, they also rely on hormone therapy and government could deny that usage, driving them to black market hormones and a lot of suicides
No one disagrees with their main point: that "they" is fine when you don't know the person's gender, not even the person they incorrectly thought they were disagreeing with in the comment that got them banned