Your problem is that you know absolutely nothing about economics.
http://en.wikipedia.org/wiki/Comparative_advantage
No the problem is that you read two paragraphs on comparative advantage on wikipedia and think you understand it.
Perhaps you didn't read the assumptions on that page in wikipedia where it said "Full employment - if one or other of the economies has less than full employment of factors of production, then this excess capacity must usually be used up before the comparative advantage reasoning can be applied." Does 23% unemployment sound like full employment to you?
And perhaps you didn't read all the critiques in the following paragraphs.
If you pay attention you'll notice that the first examples the partners are both trading goods, not one partner trading goods and the other debt and equities. China is not buying our goods, so raise the tariffs.