> And this is despite billions of welfare money given for housing, free education, free access to health, etc.
This assumes those things help one integrate. The Unites States notably doesn't have these things to the same degree that countries in Europe do. This means immigrants in America need to work. And work is a strong forcing function for socialization and integration.
> You mentioned Gypsies, well I read scholarly work stating that they were warmly welcomed 4 centuries ago in the towns of my region, until people discovered a tendency of their purses to disappear.
America also just have way fewer refugees. Seems like it's around 60k a year, so less than 0.02% of the population per year. Sweden, for example, has had around 26k refugees per year (the last 10 years), which is around 0.2% of its population. At its peak Sweden almost took on a full 1% in one year.
Of course it's easier to integrate a magnitude fewer refugees, and there will be less issues overall.
The illegal migrants coming to the US know they have to work if they wish to eat. Meanwhile, coming to Sweden has been just a ticket to easy life, where you get free housing and money, but will be probably excluded from the job market unless you learn the language and get several years of education.
So, in practice the two phenomena are very different.
This assumes those things help one integrate. The Unites States notably doesn't have these things to the same degree that countries in Europe do. This means immigrants in America need to work. And work is a strong forcing function for socialization and integration.
> You mentioned Gypsies, well I read scholarly work stating that they were warmly welcomed 4 centuries ago in the towns of my region, until people discovered a tendency of their purses to disappear.
Do you have a citation for that?