PP-you really should not be surprised at a lot of people screaming that gun laws do no good. Take a look at your own list. You have 3 groups which you would not allow firearms to.
Violent Felons
Minors
Mentally Incompetent
It is pretty much an established fact that there are over 20,000 gun laws in the USA. That means there are 6,600 laws covering all or part of what you consider "reasonable gun laws." I have to tell you that I can somewhat concur with what you are stating.
I believe what you are seeing is people tired of more restrictions on their rights with nothing to show for it. We know that mentally incompetent people probably should not have firearms. That has been discussed at length here, and there are laws on the books-do a search. Violent felons should not be among us, period. Minors should only be around firearms under responsible adult supervision-parents, scout leaders, whatever.
Funny-the Army had no problem handing me an M16A1 at the tender age of 17. My oldest son came back from Iraq last December, but after a year of combat, a purple heart, 2 arcoms and other awards, is "too young to buy a pistol" or a drink, but he can by-God bleed for us.
A lot of us are sick of the other 19,997 laws on the books. We just got past an "assault weapons ban" which had nothing to do with assault weapons. It had to do with evil black rifles in semi automatic form. No more dangerous than your dad's semi auto remington or browning - maybe even less dangerous! Even worse, the 10 shot restriction on pistols. Do the bad guys not hurt anyone until the 11th bullet? And what does that have to do with you or me?
I can no longer purchase a brand new full auto weapon. Why am I being restricted or punished? What good does that law do? I can't legally saw off my shotgun barrel, but if I did, all I just did is ruin a pretty good bird gun. It will not make you or me suddenly want to go and shoot up the town square.
Why should I have to wait, as an American citizen, for anywhere from 3 days to 2 weeks to buy a firearm in some locations? Why do I, as a law abiding American have to surrender or otherwise get rid of my pistols if I move to DC, San Francisco, or Morton Grove, Illinois? Those laws do nothing to protect my rights, let alone my life or family. They make me a victim.
In the end, law is paper. It has nothing to do with real life except in its enforcement. The gun laws in this country are so scattered, so stupid, and so comprehensive in so many meaningless ways that you could not drive from the west coast to the east coast without violating some stupid law or ordinance and become a felon or a person otherwise ineligible to ever own a firearm in your life.
When a politician makes a statement about "reasonable gun laws", keep your hand on your weapon and your wallet, because they are about to take some of both.
As to the doofi (multiple doofuses?) in Marshall, Texas...they are gonna get whats comin to them in a very big way. Unlike some locations across the country-mainly the big cities, small town folks don't speak legalese, but they know when to hold em under until the bubbles stop coming up. Common sense.