That part is actually relevant to the bill. SOPA's intended purpose is to close the foreign loophole that the DMCA leaves open, in that there's no recourse for

That part is actually relevant to the bill. SOPA's intended purpose is to close the foreign loophole that the DMCA leaves open, in that there's no recourse for a US holder of copyright to stop a foreign-owned/operated site (a la Pirate Bay) from giving pirated content to US users. So "foreign criminals" is actually what we're talking about, here. There's a lot of other things you could pick up on, but xenophobia probably isn't the best tact to take.