Roll back open and concealed carry. - Not a driver of gun violence. Won't do a thing about murders occurring in homes, premeditated out-of-the-home shootings (like mass or workplace shootings), nor with career criminals who carry for their "business" needs. CCW permittees are extraordinarily unlikely to commit non-premeditated crimes with guns.
No guns anywhere but prescribed areas like out in the woods hunting animals. Which they pretend why they need guns;
Definitely not on the steps on any capital building. Ibid
Federal crime to stock pile any weapons. "Stockpile", like "assault weapon", is an arbitrary term subject to arbitrary change based on politics. What is a stockpile? 10? 5? 2? Also, no matter how many guns I have I can only use one or two at a time. I would be comfortable with a 12-gun-per-year transaction limit; IMO if you're buying or selling more than 12 guns a year you're a dealer or collector and should require some kind of license, collect sales taxes, conduct background checks, and any income should be subject to income tax.
Militias should be well regulated as it says in the Constitution. The only militia I'm in is the "unorganized militia", per 10 USC 311, whereas I'm a male between the ages of 17 and 45, at least for a few more months. Do you want to exclude all civilian women and all men over age 45 from having guns?
No unlicensed sale of guns at flea markets or rummage sales. Universal background checks are a good idea, IMO, but this is similar to the incorrect idea that flea markets, garage sales, and gun shows are magically exempt from state laws regarding gun sales.
Demilitarization of police forces. No argument from me here, but I doubt it will help non-police gun violence.
Help in communities where desperation creates gun violence. We have to change the social conditions that lead to violence and crime. We had a 50% drop in murders and crime in the 90's because in the 70's we (Democrats) were able to pass two types of legislation that changed the social conditions: the widespread use of birth control,including abortion services, and removing toxins, particularly leaded gasoline fumes, from our air and water. We can't change the social conditions if we're not running things, and we spend a lot of time NOT running things because we target the tools of violence and crime (guns) instead.