Is a pretty run of the mill piano ballad but it’s not a bad song, far worse have been made by all of them.
People hate it because it’s supposedly hypocritical and pretentious. But really, what one of us doesn’t dream of a better world without necessarily living up to the ideals we aspire to. The “I hope someday you will join us” line is a bit hard to stomach if you take it as preaching, but it might simply mean to join the dreamers.