Well, you went to one of the most beautiful places on the planet. I wouldn't want to leave either.
On a more substantial comment, people seem much more happy in appearance and on specific moments than what they actually are. The grass is always greener on the other side, etc. The solution is and has always been to try to be satisfied (not happy) with what you have wherever you are.
>We don’t care for our children, our elderly, or our communities.
This is truly an issue and imo it has reached unprecedented lows.