Is Sweden not a good example of how immigration creates a loving, diverse and prosperous culture?

That's what multiculturalism does to countries.

I really do not understand why multiculturalism is promoted as a good thing.

Multiculturalism makes you lose your identity. Your country becomes a wasteland without identity. Your country becomes balkanized and rootless.

Imagine that. Swedes and other Europeans have gradually built their culture for centuries, even millennia, to be completely transformed and made incomprehensible by a few decades of massive immigration that began after the 1960s.

Immigration is not a bad thing. But the speed and speed at which but occurs is very important. Immigrants must assimilate to welcome culture.

Only leftists and globalists are interested in this social experiment that began in the 1960s.