I don't think it's the ease of integration into the USA, but the fact that the Muslim immigrants to the USA tend to be better educated and more well off than th

I don't think it's the ease of integration into the USA, but the fact that the Muslim immigrants to the USA tend to be better educated and more well off than the immigrants and refugees heading into Europe. There's the Atlantic Ocean between the USA and the Middle East/North Africa, so they can be a lot more picky about who they choose to let in.