"People who can't live with other people shouldn't live with other people" - I wrote that in response to a news article about how residents complained about the noise of kids screaming with delight while playing on a flying fox.
Of course it applies to so much more, it's goes far deeper than that. I'm continually ashamed as a human being how intolerant people are of others and yet our very existence requires that we learn can live with people because we live in such dense populations.
If this doesn't suit you, rather than complaining about the people around you perhaps your energy would be better spent moving away from them.
Every person is another you, just different, and I'm pretty sure regardless of race, sexual orientation or culture we were all at one stage children right? So we could at least start by being tolerant of kids, even if we're shit at everything else.