I don't think protecting the citizenry's right to "live" while they pursue happiness is "raping the constitution".
Are you saying you would rather have mental patients running around indiscriminately killing people at will? Does that not jeopardize those law abiding citizens who own guns for the legitimate reasons? As the say one bad apple spoils the whole bunch. Don't you think stopping crazies from owning guns strengthens the militia, not weakens it.
Just like Monsanto that would sell dangerous foods just to make a buck, the gun companies should not be permitted put profits above public safety.