I'm not saying that nobody supports the Democrats over the Republicans. There's two interrelated points:

* Supporting the Democratic Party against its main opponent is very different from supporting it in its own right. There's a lot of people in the US who would prefer for Chuck Schumer to be the majority leader, but very few who look to him for cues on what they ought to believe or fight for.

* There's very few spaces where the Democrats are dominant enough to form a nucleus of mass resistance. 50-43 among union members is a nonzero lead, but if you go to your union local to organize an anti-Trump protest, that 43% represents quite a lot of voices who won't agree with the premise that there's anything to protest.