I I'm a People Person, But I Don't Really Like People

I enjoy the company of people, and I like being helpful and generous. Although, I end up deciding many people aren't very good, after being kind to them for a certain period. They will show that they are only takers, and they never give back or think of others.
Especially in USA, this tendency is commonplace, and it's even hidden beneath a facade of polical-correctness that includes kindness.

I find that almost everyone is selfish, greedy, and self-absorbed with their own perspective. So many people don't even really have conversations - they just talk, and then wait until it's their turn to talk again.

I want to find good people to connect with, and build life with them around. I like helping and being a benefit to others, and I don't think I demand much, if any - of their direct assistance to reward them with that type of behavior.

I consistently feel like each person is using others, and they have rationalized away any reason they would be wrong with their behaviors.

People convince themselves they would "give someone needy the shirt off (their) back," yet then they will walk by a homeless person holding a sign, without a word. They won't feel dishonest with their assumption, because the homeless person "deserves" the position they are in.

I guess I don't know how to ignore some while paying attention to others. It's difficult for me and as a result I have become a hermit. I like people though, so being a hermit is very depressing and sad.