Problem is, it takes many centuries to civilize a barbaric, tribal population, or even a population that has become accustomed to endemic corruption - whatever the skin colour of ther natives It's not something that happens overnight, not even over decades. It takes inculcation of civilized values over many generations. So when immigrants from war-torn, tribally-governed societies, or communist/authoritarian countries, are brought into a western,civilized nation in massive numbers, they overwhelm the indigenous population with their barabric cultures.
No IP hopping here. Which post do you think should be attributed to me (out of curiosity)?