Yes, there is constantly a move on by certain well funded people to outlaw them or at least restrict them. Personally, I don't think they'll successfully outright ban them nationwide before what's coming actually happens, which is a collapse of the dollar, followed by the worst depression ever, followed by WWIII and possibly another US civil war.
But, IMHO, it's a mistake to assume that you can focus 110% of your attention on guns and come SHTF you can just drive down to K-Mart and get the rest of your stuff and then have the skills and gear to live off the land.
If SHTF and you find yourself with no autorifle you'd had best be skilled enough to make do with what you have. Truth be told, you don't 100% NEED an autorifle. They give an advantage in many circumstances, but if you don't have one you'll need to re-think your tactics and planning.
Guns can shoot game, but they cannot fish, they cannot build shelter, they cannot trap, they cannot grow gardens, they cannot repair gear, they cannot protect you from the biting cold or the searing heat, etc.....
Guns, all in all, are just another tool, one of many. They are not meant to be the focus of one's life.
As for all of this 'other stuff', it may look real easy and simple when it's in the US Army Survival Manual or in one of the many primitive skills books, but in real life these are skills that need hands on practice.
A crisis, when those skills are needed for real, is no time to be learning the actual hands on and what gear works and what doesn't. There is a LOT to fieldcraft and living off the land that is instinctive finesse and just plain experience that a book a lone cannot impart. The book needs to be in your mind, more than your pack.