Easily disproven statement by looking at real stats [1], where most western european countries are ahead of the US. If you're suggesting those immigrants are not "poor", consider the Syrian crisis, Germany and Sweden were by far the largest takers of syrian refugees in the west, while the US hardly took any syrians at all. In fact, I read somewhere that Sweden in 2015 was the largest taker of refugees per capita from non-neighboring countries EVER.
That link shows that the US took in twice as many immigrants as the entire EU. Per capita doesn't mean much at this scale- the 5 million the US took the year before don't magically become middle class taxpayers just because a year has passed.
An extraordinary 190,000 refugees are now expected to arrive in Sweden this year - double what the agency expected at the start of the year, and more people than live in Uppsala, the country's fourth largest city.
If the predictions are correct, Sweden will take 20,000 asylum applications per million people in 2015, double the rate even of Germany.
The strain is beginning to show everywhere from politics - where the anti-immigrant Sweden Democrats are, according to two of the country's eight main polls, now the party with the most support - to finance, where both the central government and municipalities are struggling to find savings to cover the costs.
[1] https://en.wikipedia.org/wiki/List_of_countries_by_net_migra...