While shaming and scolding might be overused, it's a legitimate tool in some cases. The problem is that a lot of sjw are punching down while telling themselves they are punching up because the person is white.
How often did I end up in a room full of urban, university educated people looking down on the white rural common folks.
The common people are not always common by choice. It's not necessarily by choice that they can't follow wonkish academic stories about the history of race to understand modern issues. It's not necessarily by choice that they can't see all the shades of gray of advanced morality and sort out complex issues about gender and race. These are the type of people that need to see a moral guide every week just to follow a simple morality where they can't process much beyond stereotypes.
The best AIs out there are not able to simulate advanced empathy. It is highly complex and involves multilevel recursive counterfactual meta-cognitive logic (https://www.lesswrong.com/posts/K4eDzqS2rbcBDsCLZ/unrolling-...). Given the level of complexity, I don't expect everyone to be able to intuitively get it.
A lot of people are intellectually underprivileged and too often, sjw like to scorn and mock them for their handicap.
The way I see it, Trumpism is made of an evil right wing elite that has managed to capture a large swath of simple minded folks party because these simple folks were pushed away from more reasonable political affiliation.
Populism doesn't have to be negative. The US constitution starts with We the People, not We the Scholars. Yes populism means unsophisticated views but these could be aligned with reasonable policy as much as right wing policy if the left didn't show so much contempt for the intellectually and morally disadvantaged. Democracy means you need unsophisticated people to vote with you to win elections.