Gun owners tell us that they are the experts on guns. They probably are.
I would think that gun owners would be a little miffed about innocent people being shot, and that, using their expertise, they would work on figuring out ways to reduce that number. Right now they seem to be pretty good at saying everyone should have a gun and that that would help, but that doesn't solve the problem of accidental shootings (statistically it makes that problem worse), and it adds to the number of depressed people with access to guns. So if current gun zealots could just put their heads together and come up with some new ideas about how to shoot fewer innocents, that would be great.
Otherwise, it seems legit for those of us without guns to question the whole culture of guns and offer up a variety of solutions, which inevitably will include drastic ideas like making gun ownership illegal, etc.
Problems that don't solve themselves are inevitably going to deal with outside forces that are not inherently sympathetic. Until gun lovers can find a way to make guns cute and cuddly and lovable, they are going to have to put up with folks who think the current situation sucks.