You only have to look at Trump; third generation immigrant.
His grandfather made his fortune by operating a restaurant and a brothel for miners in Whitehorse during the Gold Rush years, his father compounded that with an actual real estate 'empire' and the grandson 'earnt' money via dodgy wealth transfer schemes and sank much of it into get rich quick scams and branding deals based on fraudulent representation and money laundering, now leading the country in historic levels of open corruption.
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.
