You're not a foreigner to this, your country has a financial sector too. (I'm not American, nor does my country have a big financial sector, but I am from a Western country.)
I don't want anybody to suffer. I think a fast route to suffering would be for the West to destroy its financial sector, because some of that money (not nearly enough, by the way), to use Reagan's words, trickles down, and some if it is taxed, so they are an important prop to Western economies.
Nor does a financial sector that profits from selling to foreigners mean suffering for the same foreigners, so please don't be melodramatic. Most of the time you enjoy buying its services. I grant you that when it crashes, it's bad, but the fix to that is better regulation, not destruction.
By the way, in the case of any big Western country -- say the G7 -- if the financial sector were destroyed, it wouldn't be just that country that would be crippled; the knock-on effects would cause a major depression in the world economy.