I'm not seriously advocating limiting 3's folk. I probably wouldn't complain, but I wouldn't be promoting it. I do however think that it is an issue to be addressed in some way - there is no doubt in my mind that if you designed basketball from scratch today, you wouldn't make it so the optimal strategy is to shoot 50 x 3's per game.
I disagree with @mariner4life that the game will evolve to self-correct. The whole reason we are here now is that people started doing some analytics. The math ain't changing. And with players now empowered to take 3's in a way they never were before, they are only getting better and better at them. Practice, weights, license - all points to more and more 3's, not less. Players routinely take them from 1-2 feet beyond the arc now. This isn't going away.
Moving the line back is one option, but you would also need to eliminate the corner 3, as it's a touch tricky to widen every court.
I don't have a solution, I just know that I miss some of the old game - definitely not all of it, the wrestling and the 82-79 games can probably stay in the past, I think people forget how ugly some of the games used to be. But equally I don't want to watch 100 x 3's in a 142-137 game either. Has to be a middle ground somewhere.