Yeah this is the thing. I see the same here in Holland since the extreme-right won the elections.
People are constantly dragging up topics like transsexuality in completely unrelated discussions. I completely disagree with their opinion and I like challenging them on it (for example, what is it to them what other people do with their bodies?). They've never been able to give me a good answer to that so far. But they're constantly derailing topics about completely different things. They seem so obsessed with this topic. It's also getting so tediously repetitive. Always the same slurs without any kind of actual discussion.
The thing is, here in the Netherlands we used to have 'echo chambering' as the foundation for the country. We used to call it 'verzuiling' (literally translated "pillarification"). After the war the country was made up of several groups that didn't get along so well so each had their own newspapers, social circles, TV and radio broadcasters etc. There were the Catholics, the super-strict Calvinists, the Labour/progressive atheist crowd etc. They basically lived alongside without really interacting. And really, lately I'm starting to think this was not such a bad idea at all.