Lots and lots of dead cops, feds and otherwise law abiding gun owners. That would be a win/win/win for a specific group of horrible people.
Why don't you just post a caricature of an evil liberal with horns and big, sharp teeth instead of spewing this BS? Also, if these "law-abiding gun owners" are violent enough to shoot cops because they disagree with a law that does not trump anyone's basic human rights (no, guns aren't basic human rights just like marijuana isn't), they aren't law-abiding.
As for the question: