Agreed, and I have been making that same argument for many posts. I live in one of the most strictly regulated states, and think regulation should be yet tighter. The post you responded to was a sidebar argument to the perceived easy transition of sportsman to murderer, which I disagree with.
I would take it a step further and ban all semi autos, maybe excepting the .22. Their main civilian use is convenience, weighed against the massive potential for abuse. And agreed, I think the majority want reasonable regulation. DC v Keller affirmed private ownership as well as rights to regulate. It needs to happen nationwide.
Indeed. I *know* that posters have stated that semiautomatic rifles are good for shooting vermin, but as you say, that's convenience - I'm sure if a pack of ravening wolves were to attack a field of sheep, they'd run away if only one of the pack was shot.