But thats exactly what I am saying. The cost for education in the US is prohibitve and so they decide to come to germany. If they find employment most people will stay where they got educated.
However, i do not actually think that this the point. Education has always profited heavily from a diverse enviroment, so we do profit from people all over the world coming to us. Besides, not everything is about investment, sometimes a society just has to decide what it values. We also have a really expensive social system. I value this highly and love it when my tax money goes to efforts like this. I mean sure, at the end of the day i probably contribute more than i recieve money wise, but living in a society where i feel comfortable is pretty valuable to me :)
Lasty, i think i can objectivly point out, that neither of us is very likely to make any objective statements without getting into heavy citations :)