Ok, this is very different from the situation in Sweden.
Many were analphabets and live completely segregated from mainstream society with little hope(or wish) to integrate with Swedish society.
I agree with your analysis of the Trump family who have been detrimental for US society.
Near as I can tell, Trump III is also an analphabet, living completely segregated from mainstream society with little hope(or wish) to integrate with Swedish society (or US for that matter).
Questions for Sweden might be "How did the US integrate all the illiterate Irish?" (and should they do the same), "How did Australia integrate many non English speaking / writing Vietnamese 'boat people'?", etc.
Unless Sweden in majority is prepared to broom out all that they have accepted in, then this how it is, a mix of cultures having to find common directions and minimise friction over the next generation and a half.
I agree with your analysis of the Trump family who have been detrimental for US society.