Since when has the word "liberal" been a take-out label that stops substantive debate? Probably since Reagan and now paraded by McCain. The words "liberal" and "conservative" have become meaningless except in name-calling debate. The present Bush regime is anything but conserving--they would abolish Social Security for example--that is hardly conservative. They have spent and not taxed, raising the national debt beyond recognition--hardly conservative!
I suggest we go "progressive" and "reactionary." Or, maybe, "Real World" and "Imaginary/Mythical."