Canada, lol!
Canada is too tolerant. How many people have you ever heard say they're moving to Canada in order to further inflate the burden on our healthcare system?
Our kindness will be our downfall and tolerance just leads to silly issues like tomaszjot mentioned. I worked at a water-bottling plant years ago: An Amish guy was fired because because of cleanliness issues (didn't shower, brush teeth, etc.) Meanwhile an immigrant who stunk to high-heaven was never reprimanded because management didn't want to start any racial/religious issues.
That's just a small example of tolerance leading to conventional rules being thrown out the window (the amish guy gets sent packing because they likely wouldn't create an uprising, but it wasn't worth taking the chance with an immigrant due to the religious overtones.)
Abuse of our credit companies is another problem: Not being born in this country creates loop-holes for overseas immigrants as well: It's stupid how easy one can move in here, have more than one alias for racking up credit, with no intention of paying it back and run home a wealthier person -- leaving the patriots to pay the difference.