Neither guns nor pepper spray are allowed in liberal doctrine. There is a reason why Pacifism is a key tenet promoted by cynical liberals and worshiped by their idiot followers. To cynical liberals, the only valid reason to use a weapon is to destroy America; to idiot liberals, reasoned dialogue would be enough to neutralize Osama bin Laden.
Umm, liberals are afraid that guns will be used to defend America. That would get in their way.