ok... 1% are Greens and 1% are Libertarian.
You seem to think it means registering for the Independent Party. It's not... it's just not being aligned with a party. All evidence shows 30-some percent of Americans so identify themselves.
So you're saying that "not being aligned with a party" means a person is and IND ..?? Really ..?? I think it means they're too lazy to get involved in voting.