There are riots in Sweden too [0], and what some consider to be terrorist activities from the far left to the far right [1].
[0] https://en.wikipedia.org/wiki/Category:Riots_and_civil_disor...
Also, with regard to Sweden, they have been a destination for poor refugees who on average integrate less than ideally into their society, given social, economic, political and spiritual differences between host country and new arrivals.
That argument makes no sense: a lot of people have very exotic tourism in Paris, New York, or in Guadeloupe. Yet for those who look beyond the surface the situation is shocking and on the right day of BLM / gilets jaunes protests you may believe the entire society has lost their shit (when in fact it's just the logical conclusion of a tiny minority of officials/businesses exploiting the entire population).
Sweden has rather high level of wealth inequality (about the same level as the US) while being quite stable politically and socially.
[1] https://en.wikipedia.org/wiki/List_of_countries_by_wealth_in...