The thing to do is have laws that make sense, and if leftists pervert them, the problem is leftists, not the law. I might not support this no fly list law, not without protections built in for good Americans, but I don't think it's a big deal to be willing to discuss it. Especially since he's bringing in the NRA. You said you were done with Trump because of it.
Most laws will, inevitably, be perverted. For this reason they should be as few as possible. For some reason folks seem to have forgotten “The government that governs best, governs least.”
Problem is, the definition of ‘deranged’ is in the hands of the deranged and the evil. And such laws will be neither good in principle or intent.