I don't care if it's a "moderate", a "rational" or whatever prefixes do you have for these leftists who says they don't support the Marxist shenanigans in academia or the occurring Cultural Revolution happening all over the West over the past decade, they are lying. And you believing their lies that they're against it while not doing anything to oppose it only enables these primordial evil that's going on in the world today.
In short: "Don't believe their lies." Lying is as innate to them as they live.
Yes, for a long time, the Democratic platform aligned with what they wanted. Now, it doesn't, but they've got too comfortable with things. They just vote Democrat just assuming they agree on things.