$1:
They want to come here to work and live, just like British, Scottish, Irish, French, German, Polish, Ukrainian, Hungarian, Indian, Pakistani, Chinese, Japanese, Vietnamese people did and still do. The issue shouldn't be if we allow them to come, but that they be treated well when they are here.
Yes the last lot sure fit in quite well didn't they?
I'm just looking at the United States and how much a problem Hispanics are becoming for them and repeating what they did might not be the best idea.
British includes the Scottish by the way.