I admit that I also took your praise for that particular quote of Mark's to mean that you think total isolation is a good idea. He did say no trade whatsoever. Well, in addition to a complete economic meltdown...
I'm not against high quality goods, btw! That particular quote was just more extreme than I think is warranted. Then again, Mark never does just dip his toes in the water.

(I hope no offense is taken, Mark - I mean it in good fun.)
I think the real issue is the huge frustration about shoddy goods and dearth of decent of jobs. There is huge frustration around. A lot of this is fueling the tea party.
I think there was a hidden agenda in the recent debt ceiling brinksmanship.
I think the newly elected congressmen and the likes of Michele Bachmann really do want a default and the blowing up of the world economy and the end of trust in world currencies. I can see where that view could get some sympathy though highly dangerous.
However it won't be us that pulls the trigger. The totally inept and dishonest Eurozone, will be quite capable of blowing up the world economy by themselves.
The chairman of the Bank of England, Sir Mervyn King made another of his periodic interesting speeches recently.
His view is that the indebtedness of the Western democracies is greater than can ever be realistically be paid back.
He suggested the way out of the current morass is negotiations between debtors and creditors. He was basically suggesting that nations, including the US, will ultimately be forced to go through bankruptcy proceedings.
The current levels of sovereign debt and trade imbalances are unsustainable. So whether one takes an isolationist view or not, we will be forced to make more of our own goods whether we like it or not. Otherwise our decent to the ranks of the third world will continue apace.
My nephew, the political risk correspondent for Reuters News recently wrote
this article about the crisis of globalization. Peter Apps was also recently appointed as a special adviser to the British Cabinet Office in addition to his duties at Reuters.