When you are a small minority you will have to rely upon others to defend your rights and that will not always work out particularly great.
In democracies it's very important that you are able to sell the policies to people. It's not about what's actually good for society, it's about convincing stupid people to vote for you.
While trans activists did get traction in the democrat party the republicans increasingly turned themselves against trans people and that's not a good situation to be in since historically those parties have taken turns governing as voters shift back and forth between them (most voters don't change parties but some do).
What trans activists in the US needed to achieve was at least one of the following
0. Destroy the republican party.
1. Push the republicans to support them (have to be achieved before they win again)
Generally the left believes in democracy making them unwilling to resort to the extreme authoritarian measures required to achieve 0 and mainstream pro trans ideology was too unappealing to conservatives and people on the right to achieve 1.
In democracies it's very important that you are able to sell the policies to people. It's not about what's actually good for society, it's about convincing stupid people to vote for you.
While trans activists did get traction in the democrat party the republicans increasingly turned themselves against trans people and that's not a good situation to be in since historically those parties have taken turns governing as voters shift back and forth between them (most voters don't change parties but some do).
What trans activists in the US needed to achieve was at least one of the following
0. Destroy the republican party.
1. Push the republicans to support them (have to be achieved before they win again)
Generally the left believes in democracy making them unwilling to resort to the extreme authoritarian measures required to achieve 0 and mainstream pro trans ideology was too unappealing to conservatives and people on the right to achieve 1.