Honestly, it’s because they know better. The fascist thing was a counter to flagging interest in their own ideas. Their ideas have nothing for average people, it’s all about set asides for minorities, and quite often those are only accessible to those minorities who are already middle class. Or maybe they have a plan to … make sure prisoners and grade schoolers can get cross-sex hormones. That doesn’t excite anyone who works a regular job and is hoping to afford Top Ramen after paying rent. It doesn’t help people who were tricked into college and will be paying for their four year degree into their 40s. It doesn’t help millennials who are literally praying for a housing collapse so they can finally dream of buying a tiny house in which to raise a family.

When you can’t convince people that you can make their life better, the only thing you actually have is standing in the center stage screeching to anyone who will listen that those guys over there are going to steal your democracy. Now don’t misunderstand Trump is a twat and he’s going to try to get away with stuff. But as you say, if the democrats actually thought he was going to “end democracy “, they would not stand for it. They’d have too much to lose as opposition parties tend to end up dead if democracy actually dies.