LOL, no. How the hell would we benefit?!
I would accept a very limited number (with the number that Obama has proposed being tops) with preference given to people who have college degrees.
A bit surprised by that coming from you. Could you elaborate. IIRC you are generally pro-immigration.
I'm actually not that passionate about the issue, tbh, but I would probably fall on the more conservative side, actually. But I was reacting more to the OP's suggestion that we drop half a million people on a city like Detroit, which is struggling to say the least. There aren't, for e.g., enough Wal-Marts or gas stations in the region to give a fraction of those people jobs. Three million people dumped on the country is just silly. We may have the space, but I don't see that we can economically sustain that kind of approach, and there may be a security risk. So, people with college degrees, relatives here, able to support themselves should be the criteria.
I am fairly passionate about the fact that I don't think the USA can/should just shoulder the world's problems and crises, though, to include aid, intervention (I don't think we should intervene militarily unless we are directly threatened), refuge, etc. We just have too many mouths to feed here. And we are in a different hemisphere, so I think we should take advantage of that. Inviting people to come here and blow up buildings or hijack airplanes is really the last thing we should be doing.