> This decline came about as the western world became rich enough that eliminating the suffering of slaves was worth the inconvenience of replacing their labor.

This is just not true, and certainly not the view of most historians. This is an important claim, and you have not backed it up with evidence.

> It is not obvious that the Stanford prison experiment is a complete fraud.

I'm sorry, but this is quite a strange statement to me. Let me put it this way: if I cited the Stanford prison experiment in a university paper, the paper would be failed. The experiment is widely criticised, outright fraud has been found in a number of cases, and its results have not been replicated.

> The only ground I can stand on is that people such as Stephen Pinker getting cancelled is obviously ridiculous.

Again, Stephen Pinker is an extremely powerful individual. He's a multi-millionaire, a Harvard professor, I don't think I could come up with a better example of someone with a large platform. If he's been "cancelled" then he's an example of how insignificant and ineffectual "cancel culture" really is.

(of course people looking into his association with Jeffrey Epstein is quite another thing, I certainly don't think that's a "cancelling")