Some have said his foreign policy won't work because it make us isolationists. I haven't quite got a handle on his whole take. We know we have businesses overseas, that makes us a global entity, right off the bat. Not sure, how that would work for us.
Yeah I hear that criticism a lot but it's just not true.
He's against giving your tax money to other countries and getting involved in other counties internal affairs. He doesn't think the US should be the policeman for the world or be as involved in the UN. I think those are some very good ideas. He's for trade and diplomatic relations with all countries that want the same. He's not an isolationist.
Here's a video of Ron Paul talking about isolationism: