I’ve traveled by air hundreds of times since 9/11, and I haven’t encountered any abrasive TSA folks. My wife has - once.
That doesn’t support the theory that they are Nazis trying to subjugate America. I think a lot of their rules are stupid, but that is another discussion.
Like I said, I don't like dealing with security, but I don't project this dislike on the screeners. I think that's the difference between my personal experiences, and those on this thread that think the TSA people are a couple of rungs lower on the evolutionary ladder.