Brits know to their cost what letting the wrong type of people into their country means.
I sometimes dream about,if we had invited the Burmese,Filipinos and yes even Thais into our country instead of the scowling,west hating,lazy,workshy rabble that live there now.
Instead of ladies that resemble a mixture of bin bag and letter box you would have had happy,smiling fun loving girls that within a couple of generations would have integrated and produced beautiful fun loving kids who would have love for their country instead of hate.