Seems to me that "Liberals" in America are a variety of Conservative. And "Conservatives" are a form of Liberal.

In most countries both would be seen as well out on the Right politically. Not that the distinction between moderate Right-wing and crazy Right-wing is unimportant.

Perhaps American "Liberals" could play a bit dirty too, and start making use of the British synonym for "Conservative", by calling their opponenets "Tories" - which should have the merit, in the USA, of making them sound rather unpatriotic.