I put it slightly differently.
The Democrat Leadership can no longer enforce the discipline to keep it on the down low.
The younger, upcoming generation is no longer willing to and can't see any reason to not admit who they really are.
The recent trend to 'let it all hang out' of the Homos and the Trans has fed the zeitgeist to fly your flag proudly for Communist.
So... they're useful idiots. But for our side.