Not invalid at all. Europeans came and conquered. Of course it was not illegal! They were merely pushing aside animals, that weren't perceived as human. That was my point. Was eliminating the competition moral, though? Of course it was! The indigenes were simply one of god's creatures that MAN had dominion over, like a cow or a chicken or like women or blacks. The 'Homeland Security' of the time, did not prevail as we all know. As far as the welfare state goes, you are assuming that people now immigrate here for that only, which is wrong. It really matters not, because America is changing and becoming more colorful, so to speak, and unless we go all Germany ca. 1939-45, there is no stop.