trans rights are no longer under attack.

Yes they are, you've just stopped hearing about it because the Democrats mostly stopped playing defense for them. Turns out a tiny minority has a very small voice when it isn't being amplified by people with access to power and privilege. It's similar to the way Democrats now support right-wing border policy despite paying lip service to leftist ideas about the border and immigration. It's just another cause the Democrats cynically co-opted until it was no longer convenient.