I think our problem here in the states is fear. I'm going to make extremely broad generalizations that are not fact checked or have any basis in reality, they're just how my brain thinks it might be happening.
Since the repeal of the Fairness Doctrine and the rise of thousands of editorial, biased, BS "news" organizations, we have been on a steady decline of way too much information that may or may not be real. We have all absorbed information, processed it through our confirmation bias, and drawn our own conclusions. I have friends who are still on the chemtrail conspiracy and others who think that vaccines cause rabies or alien invasions. Just the other day, a lady I briefly dated posted on social media a picture of a plane and it's cloud trail. The plane was likely 40,000 feet in the air and 200 miles away, but minutes later she had an asthma attack and correlated them citing them as proof that it's a government plot to make us all sick. It is my belief that these opinions have been given fertile soil in which to bloom as a result of the repeal of the Fairness Doctrine and the rampant information train dumping non-factual crap. This is all too evident when we read every Tom, Dick, and Sherry's FB posts claiming facts as if they are suddenly experts. I want to see numbers.. specifically, how many non-factual memes, stories, and posts per capita on social media come from the US versus how many come from other countries. My guess is that it's heavily skewed.
I don't think it's too much to ask that a news organization only provide fact-checked information in a non-biased way. Back in the 80s you had a choice between the Walter Kronkites and Barbara Walters of the world.... or the Enquirer showing badly edited pictures of Bat Boy. Now you have thousands of heavily biased 24-hour channels spouting only what serves their mission's political agenda.
I do think there are other factors involved - not the least of which is the general timbre of the US society and its conglomerate beliefs. We have a significant percentage of the population that believes one religion is dominant and should make laws with regard to their religion despite the fact that it violates the first words of the first amendment. We live in a country where enough people don't believe in global warming to actually do anything about it. We live in a country that still recycles aluminum and plastic even though we know they all just go to the dump in most places. We live in a country with a hard mistrust of those in government and yet only a tiny fraction of us vote. We're broken. Hardcore.
I think it's pretty well-known that I'm pretty hard left on the spectrum. I am a gun owner, a hunter, and I believe I should have a right to own guns... not because of a 250 year old piece of parchment, but because I have passed the requirements for owning one. I am NOT an NRA member and never will be. I believe them to be a caustic lobbyist group that not only blocks common sense legislation, but feeds into the fears and misinformation so that you are more compelled to buy a gun which profits the manufacturers who line the NRA's pockets. I don't feel like I need or would ever want an AR15 or a grenade launcher. Having said that, if I had to jump through additional hoops before I could buy a gun knowing it would save hundreds of people's lives, you better believe I'm OK with that. My problem is what those hoops are. The gun control side of the argument is predominantly comprised of people who know nothing about guns other than "disturbed white kid bought an AR15." Background checks are pretty useless. Just because you robbed a liquor store when you were 16 with a box cutter does not mean you'll shoot someone now that you're 50 and want to go hunting, and just because you have a clean record with no red flags doesn't mean you won't buy a rifle and go shoot 10 kids in a school. In those cases, you are preventing one person from owning who won't use it to commit a crime, while permitting another who will commit a mass shooting in two days.
I'm also skeptical of banning assault rifles. I own a hunting rifle that is basically an M16. It doesn't look like an M16 because it's a wood-stocked hunting rifle. But it's semi-automatic, it's the same caliber and shoots the exact same cartridge as an M16, and only a couple inches longer than an M16. How long will it take for determined shooters to just say, "ok, I can't get the one that some ignorant lefty labeled an assault rifle so I'll just get the same thing with woodgrain."
I can't really be picky, though. We've let this go on for so long that it may require abnormal measures. We could turn around the media, but it will take two generations before we get our brains turned around, and I'm not ok with the death toll we will rack up in two generations. We could have been like so many other 1st-world countries with permissive gun regulations that DON'T have problems with mass shootings, but we've chosen a different path. How we get back on that path is a big mystery, but I don't think we can get there without factual media.
I wish we could have real talk about this, but right now it's just non-gun people who don't know their assault rifles from a hole in the ground, and fanatical gun freaks who say things like "NRA 4ever" and "cold dead hands." We're never going to reach a consensus when it's the extreme ends of the spectrum who are doing the fighting.