And reasonable ones are perfectly willing to discuss it with reasonable people as we are now. Unreasonable ones aren't willing to discuss with reasonable people, either because they demand that guns be met with more guns, or they demand that all guns be gone and anyone refusing be shot, or something stupid like that.
The major issue that I have is this: If the concern is for the loss of human life (specifically young human life, not cancer that gets you in your 80's), there's more valuable targets than firearms. Twitter ablaze, talking heads on the news, family emails, facebook hashcrap, etc over a statistically minor event (as horrific as it was) with barely an acknowledgement of child abuses, child lives lost to drunk driving, hell, as I posted a bit earlier, child lives lost to food allergens. If one insists that the time and effort on firearm debate is more valuable than the time and effort spent on any of a number of greater potential life-threatening events that can befall a person, I cannot help but feel it's an agenda item rather than genuine concern over the lives of those individuals.
If we were discussing the lives lost to gun violence each year compared to say, the lives lost to train accidents each year... yeah, there's a friggin problem there, and we can address something that's destroying the majority of lives of US citizens. But when we've got some 7x as many deaths due to alcohol (~88k/yr vs ~13k, not counting suicides. ~33k counting suicides), and 37x as many due to tobacco, I have a very hard time carrying the flag with the 'ban the guns' crowd. It just feels... illogical.
I know, I know, I'm bringing up everything but guns yet again, but I cannot help it. I, personally, feel far more threatened by a drunk driver than I do by a madman with a gun, because I understand that the odds of dying to a drunk driver are far higher. The response to gun violence is vastly disproportionate to its effects on us. Hell, where was the outrage concerning gun violence when it was primarily gang related back in the 60's-80's? I don't want to do a racial callout, but it smells a lot like our opioid epidemic.
Agreed, there's a few organizations like the NRA that are absolutely despicable in their tactics, and level of funding. If we put the lobbying money they alone spent on increasing the general well-being of our poorest, we'd probably affect greater change on lives and livelihood than any gun control measures would.