My purpose in all of this is not to "prove" that these are all nice people, but simply to point that you are all speaking with great confidence about the characters of people that you really know nothing about.
It's not right when people unjustifiably get socially lynched by the mob and it happens often. However, many successful people really are sociopaths --- which might be expected from a person who puts success before anything else --- and I don't think anyone ought to give up forming opinions on anyone else just because the mob often gets it wrong or because we don't know every detail of the lives of the accused. If that weren't the case then we couldn't pass judgement on many of the people we "obviously" want to (despots, etc).
(And disagreement, in particular defending tech executives, is not socially indefensible, defending sexism is).
You will be astonished at how different the two can be.
Nobody here is saying the YC and VC community are all evil super-villians. But as PG's essay and your views here indicate, there may be a startlingly shallow understanding of the nuances of human behavior in the YC community as a whole.
Techies such as ourselves tend to be very optimistic and trusting people. We always give our friends the benefit of the doubt when we can. But you and PG are seemingly taking this way, way too far in spite of mountains of contrary evidence (and I'm talking evolutionary biology, not just anecdotal).
Humans are primates who form status hierarchies and ruthlessly enforce them via any means necessary. This includes power asymmetry, extortion, bribery, status signaling, and a whole host of others nasty behaviors (watch Game of Thrones for the full gamut). That PG and yourself apparently deny this basic biological fact for a certain group (i.e. YC founders) does not make it less true.
I have to disclaim here that I'm a huge fan of yours Paul, and I know much about the incredible struggles you've faced in life. I know the only way to move forward is to be relentlessly positive, and this is also my own personal philosophy. However, part of being a rational person is trying to see the empirical world for what it is, not what we want it to be. I think this is the only thing PG is guilty of; He wants founders to be above average in altruism, when the reality may be the opposite.
All the best, and forever a fan.