because people hate people who are different than them. because it hurts their feelings. hence why they overwhelmingly tend to want to only socialized and live with people who are very very similar to themselves, and see people who are different as threats. and similarly, many people's lives are consumed by petty jealousies and social comparisons and judgements of what others deserve and don't deserve, including themselves.
I'm glad you are like that. Some people are, a but a lot of folks, are not. They see the world though a very bitter lens of what they feel they are owed by other people, in a very one-sided way. And personally, I do not identify or understand that viewpoint on the world myself. I have never felt anyone owed me anything and I generally feel grateful for the things I was able to achieve, so I really can't emotionally relate to folks who think I, or anyone else, owes them things.
increasingly we seem to live in a world where nobody admits fault or takes personal responsibility, sadly. And it's having dire consequences for our society, at least in the western world. people rarely go 'what can i offer to others' anymore. they go 'what can others give to me, and why aren't they giving it to me, and why isn't it more'.
it's not everyone I meet at all, but it's very much a cultural shift that has been happening the past 10 years, to the point where these attitudes and beliefs were rare, and now they are increasingly common.