Republicans never actually think through the legislation they propose and how it can backfire on them.
Well it's because they have an agenda and they have lobbyists write their laws. Democrats do it too but especially when it comes to some social spending or environmental bill they do hella studies on it.
The GOP policy is always to cut taxes and regulations and whatever the gun lobby wants. You basically make it legal to shoot people then even anti gunners need guns to protect themselves from other people who might say they're "scared" and had to shoot them.
Follow the money and you'll find the answer with republicans always.