Drives me crazy.  

Those who can make you believe absurdities can make you commit atrocities. -Voltaire

Sort of. In the case of the ICC which you cite below American opinion is that America should be party to the treaty.  In any case America is a party to many international treaties that it is currently violating - the Geneva Conventions and the Convention on Torture. These are incorporated into the US civil and military criminal codes.

We never signed on to that one, so if any US government official is sent to the Hague, then that's an act of war.

That is a deeply ironic statement for an American to make.

There are all sorts of so-called "human rights" conventions which are subscribed to by most countries in the world and then plainly ignored.

Absolutely true. And if you're fine with a situation where American statements about the importance of human rights are treated the same as those coming from, say, China or Russia  - i.e. as a bad joke, then good for you.    But if that is to be the permanent US attitude, I really hope that the Europeans dissolve NATO, kick out our bases, and bar overflights by our aircraft. Because that sort of attitude in a superpower with an aggressive policy translates into rogue state status. Fortunately, however, the poll makes it clear that Americans do believe that their country should adhere to, and be held to higher standards.   The Lieberman response to Abu Ghraib 'al Qaeda didn't apologize for 9/11, why should we' or the right wing talking point  'but Saddam was worse' is not one that most Americans share.  

The American opinion on international law is that if the US isn't a party to a treaty or an international convention, then it doesn't have to follow it.

Right.  Legally the US would be under no obligation to follow it.

The US has never really been in favor of treaties unless it is allowed to exercise a large amount of control over them.  The poll suggests that Americans see a role for institutions like the UN, but the UN (to continue with the example) is too easy a target for the right wing.  Fox News commentators can point out that China is a member of this or that council on human rights at the UN, and immediately the UN will look ridiculous.

We need international laws governing human rights, but, if there is no way to enforce those laws, they're useless.  The current international legal system is a joke, in my opinion.  (And, yes, that is thanks, in large part, to the actions of my country's government, but George W. Bush is not the only problem here.)

Even if the US had signed on to the ICC, there would never come a day when a high-level US official would be arrested.  Let's not pretend that the ICC would ever prosecute (say) Bush.  As gutless as the Democrats have been in the face of the GOP, the international community has been equally gutless, and elections have done little to reverse the trend.

Be nice to America. Or we'll bring democracy to your country.