The Left thrives and profits from conflict.
Sweden is not yet "diverse" enough to ignite, except in a few areas.
We're not supposed to notice that before the influx of migrants Sweden and the other Nordic countries were culturally and ethnically homogenous.
Welfare states can be tolerated in countries with lots of trust where freeriders are shamed.
Not so much in the multiculti US where our ethnic diversity leads to division and distrust.