Let me see...
If I buy a gun and shoot you, the government will ban gun manufacturers?
If I buy a baseball bat and smash your skull, the govt will ban all sports?
If I buy a potato and stick it in your throat and you die, the govt will ban agriculture?
If I offer you a ride (free or for a fee) and then decide to rape you and bury you in a forest, the govt will ban auto makers?
How does that make sense?