You're missing the other half of the point. The same people who are allegedly outraged that some college kid somewhere yelled at someone are perfectly fine with or actively cheerleading for real regressive politics.
The portion of the left that is unwittingly supporting the right is vanishingly small, yes. Particularly in proportion to the portion of the right that is supporting the right.
Um, what? You were talking about "coddled children being raised to have an entitled victim mentality." As I said, that's Trump's supporters. They're mad that their privilege is declining, and they're lashing out at everyone else. It's the regressive right's identity politics (and to the extent that left-wingers support it, they are regressive).
Right. It's the dominant force behind the support of (at least) one of the leading presidential candidates. Generally, it explains why people are willing to support obviously idiotic and hugely destructive economic policy and why people oppose doing anything about climate change. You know, seriously problems that have serious, far-reaching consequences for a lot of people all over the world.