The Absurdity Of Blaming The Financial Crisis On Foreign Investment

Why not consult a real economist...
I came across an article stating a view that the financial crisis is nothing but the result of aggressive foreign investment in the American economy. What I find absurd in this article is in claiming that the economy failed because it was too good! According to this view the economy was so good that it attracted the wrong kind of investors who wanted a piece of the action. Then, what happened was that the economy wasn’t able to live up the expectation.
Well, how about admitting that the whole market hype was a bubble like the current rise of the stock market is a bubble? Why try to put the blame on the whole world instead of admitting that it doesn’t make sense to take risks without backup? Oh I forgot, there was backup: the money-printer!