Making sure Violent felons and habitual Sexual Perverts cavalierly released from Prison can not legally obtain firearms is not a bad preemptive action on a constitutional right (2A/RTKBA)
If you wanna cherry pick junk that works for your argument it's no argument at all. That's just the affirmative in a statement that makes you look right. Who's gonna say they support those kind of people having guns? Preemptive would be we suspect someone is those kind of criminals and we take away their rights, if they've been convicted that's after the fact action.