100 million civilians were murdered by their own governments in the twentieth century while those governments were imposing socialism upon those people. There is no comparable mass murder attributable to any ideology, anywhere, anytime. There is also no reason yo believe the killing has stopped. The people most likely to perpetuate the killing are the same people who are telling you you don’t need guns. How stupid does one need to be to believe these murderous bastards?
The question to throw back at the grabbers is: "Are you a 'useful idiot,' or a scheming liar who knows where this is intended to lead: the genocide of socialism's enemies?"