Cool story but no gun person would actually give that advice. The shotgun part, yes, because you will not get overpenetration in a flimsy apartment building. But not the loading non-lethal rounds first part.
2) safer than trying to fight with a knife directly.
3) More convenient storage, support for differently sized people to safely use a firearm.
4) Prevent blinding flashes of light.
5) allow a suppressor to be attached which prevents hearing loss.
6) launching flares for locating without direct LOS.
7) reduced recoil for better accuracy or smaller/weaker people to safely use a gun.
8) Similar to 7.
9) similar to 1.
10) safety, accessibility, increased accuracy
These bans tend to only ever make guns more dangerous or less accessible. The fact some people may be able to also buy a gun that looks (not works) like some military forearm is irrelevant.
Why is this an issue?
> random arbitrary features on rifles
Why do you need: 1) pistol grip 2) bayonet lug 3) telescoping or folding stock 4) flash suppressor 5) threaded barrel 6) grenade launcher 7) muzzle brake 8) muzzle compensator 9) thumbhole stock 10) foregrip (source: https://en.wikipedia.org/wiki/Gun_laws_in_New_York#Overview)
I live in NYC and none of the above bans are an issue for home defense or hunting. When I asked my green beret friend what to buy for in-home defense he simply replied "A mossberg or benelli pump action and a box of bird and a box of buck shot. Load up two rounds of bird and the rest buck. If the first two shots doesn't stop or scare em off, the buck will."
Most people I know who complain loudly about these bans are the types who like cosplaying gi joe and tell me things like "holding a gun makes me feel powerful." This is why I support theses kinds of bans, to keep high capacity killing weapons out of the hands of the mentally ill.