The “politically correct” phenomenon boils down to a desire by the “elite” among us to enforce group-think (or, minimize individualism). It is intolerance in the name of tolerance.
When I was a young man, I understood that there would be people who had opinions (beliefs) different from my own, but had been taught to adopt the attitude of tolerance in the name of free speech.
We often heard people say “I vehemently disagree with what he said, but will defend with my life his right to say it”, or something similar. At the same time, we seemed to have the ability to discern when a “line” had been crossed, that we would not tolerate so easily (eg speech that attempted to incite to riot, or was libelous, etc).
Now, it has often become an attitude of judging one’s heart and eschewing tolerance for intolerance: “I vehemently disagree with what he said (believes), his heart is full of hate, and I will do what I can to punish him for saying (believing) it”.
This “politically correct” attitude has no place in a free and open society.
It is a kind of funny to watch silicone valley geeks swallowing PC-crap hook-line-and-sinker. They are typical useful idiots.