Anybody who stays home is a worm.
Unless they are a libtard, of course. In which case they are a useful idiot.
Well, I'm not the type to stay home, but in defense of anyone who may, let me respectfully say that your proposition here is not only clumsy, but incoherent since your conclusion is indistinguishable from the the statement that "anybody who doesn't vote is unprincipled," and that would contradict your premise. Unless of course, you mean "worm" in the literal sense, which is quite impossible.