IT's kind of like any gun, some people like certain guns some don't. To me an AR is not something that I think is the greatest thing in the world, it is just one rifle. What is great about this country is we are free to choose what wee like and your neighbor is free to do the same.
I am sorry but common sense is a subjective term, it also deals with the way you raise cattle or if you let your kids hunt, play sports rodeoand on and on.
But like I said we have the second amendment and it lets me choose which gun I would like to own, now that is common sense.