I've been in forums since the 90s, and if anything it seems to me like many people are more open to discourse now. I got called the f-slur so much back then. The reason it probably seemed better back then to non-LGBT+ people is that they were excluding and marginalizing us.

And if we welcome people like those I refer to in my post, we will be once again excluding and marginalizing LGBT+ people by creating a hostile space.

I don't think things have gotten worse. It's just that whenever we get the slightest step towards equity, bigots push back. The only solution I know is to make that impossible for them.