Products of their generation. As they die off others will take their place and society will move on to other groups to target.

They may not be politicians but they spend money to get themselves into positions of political power as these few days have shown with Musk. And these people get most of their power from the masses that are dumb enough and bigoted enough to be swayed by a shared common hatred of groups to scapegoat for everything.

I wouldn't say that JK Rowling was "going after" transfolk, she just didn't agree with their premise. I wouldn't go so far as to say that's hatred

Because there are alot of ignorant people in the world afraid of what they perceive as different.

In your first two examples, regardless of not being politicians it's clear that by helping put politicians in power they benefit, so whether they genuinely care or not, it's just about money and lack of compassion to them. And continuing to drive class warfare continues to benefit them.

In your last example, I think that person is just in the ignorant and afraid of change category with an unfortunate amount of exposure.

I do wonder what their end game is. History surely will not look on them favourably, so who would want to be the villain on the world stage? Yes history is written by the victors, but only for a short while until the truths come out. I just can't understand why anyone would deliberately want to be on the wrong side of history.