1. Most US media (especially radio) being conservative allowed Republicans to define Democrats in their terms. Consequently, the "Democrats are all trans rights and DEI" was a Republican choice.

2. The Democrats certainly didn't make it hard for (1) to happen.

I'm no Trump fan, but losing to Trump required some serious efforts :-(

But the public dissemination of these positions is very conservative media driven.

Counterfactual: if progressive media had been as dominant as conservative media is, everyone would have spent the last 4 years hearing about government infrastructure spending and Project 2025.

In reality, you instead heard a relentless drumbeat of easily attackable Democratic positions, with nary a peep about Republican extremes.

So, yes, Democrat fault for having those positions in the first place. But the de facto situation is mostly created by conservative-dominated media being able to repeatedly broadcast those to an uninformed public.