I'm pretty much a gun control maximalist, but I would be more than happy to barter suppressor restrictions for pretty much anything else, since I agree with you that there's a good non-shooting-other-people reason to want to have them and I doubt they're actually that relevant to murder stats.

I mean on Amazon you can buy them too, you just might have to look for something like a "lawnmower muffler for 9mm exhausts".