At least you established it wasn't just against black or brown people.It's funny, the USA really didn't have any kind of immigration policy whatsoever, until we didn't want the Chinese, and then we got the 'Chinese exclusion act'.
(We wanted their labor, until we didn't...sound familiar?)
It's the Chinese, it's the Irish, it's the Italians, it's the Jews (how many did we refuse to take when Hitler was on his super-pogrom?
We've been having these immigration debates since day one.