Here's a practical use for you. My self-defense is my business. The anti-gun crowds' arguments are going to have to get a lot better to convince me otherwise. What are you gonna do when there may come a time we have to remove a dictator/spy (hint hint) from office and you have banned all guns? Check Bill Maher's opening from this past Friday. A lot of you need to reevaluate your positions.
I was always a fence-sitter about this, although the Muhammed and Malvo killings of 2002 made an impression on me. I had actually frequented the shopping area where one person was killed, and I remember using the same gas-station where another died. I could've stayed in the area three more years, and become a victim.
You don't need an AR-15 to defend your home. The advice of a retired policeman suggests that a good pump-action shot-gun is a better choice, with less risk of killing a neighbor with a stray bullet. When an intruder hears you rack that sucker, they're likely to bolt before you can pull the trigger.
If it's some fantasy you have about "per-teckting yur freee-doms" and overthrowing the government -- get some folks together and raid a federal armory. Steal your guns. John Brown did. Or at least -- he tried before being tried in a court and sent to the gallows.
It was after the Sandy Hook child murders that I decided I could oppose citizen access to an AR-15. Then, the shootings in Las Vegas added to my conviction. Bump-stocks and large capacity magazines -- even for semi-auto pistols like those used in the Tucson shooting of 2010 -- should not be available.
Keep an eye on New Zealand, though. They didn't waste any time. Let's see if they're happy with the solution. I'd bet on it.
When you live in a country with more guns than people, you have to question the wisdom of the status quo. And when 40% of an electorate are like Rick Santorum and can't see a narcissistically disordered sociopath for what he is, you have to question the wisdom of their other choices -- telling us we must have open-carry and stand-your-ground laws, assault weapons and other wonderful things.
I think it's possible to infer more ignorance from very obvious observable ignorance. The truly-ignorant are always the last to admit their ignorance to themselves and others. People who are a lot more brilliant than our Asshole president imagines himself to be, call themselves stupid or ignorant all the time. That could be a useful rule-of-thumb; like pornography, you will know an Asshole when you see one.