Too many guns? You should have seen America before the 1968 gun control act was passed.
Guns were available at gas stations, liquor stores, hardware stores, sporting goods stores, clothing stores, book stores, record stores, grocery stores, Saddle shops, bus stations.
Cash and carry. No waiting period, no paperwork, no background checks. Just look old enough.
OR, you could chose one from the back of a hunting magazine, drop a check in the mail and it would be shipped right to your door. You could even order fully functional anti-tank rifles and ammo same way.
Yet the murder rate was very low back then and road rage was unheard of.
Then came the 1968 gun control law, and in the 1970s the insane hospitals were closed down and the inmates dumped on the streets.
And within a few years the mass killings by crazies began.
I remember all of that. As a teenager back then, I bought a rifle in a hardware store and walked out the door with it.