Firstly it's an amendment which in itself says it can be changed.
I think I've seen every single argument for guns, from the ridiculous to the valid.
@Dr. Dwayne here has probably always been the most consistent and reasonable as is seen by his valid points made a few posts above and throughout this thread, and forum. Although I don't always agree, I respect his views because he's always able to back them up. Ultimately concessions will have to be made as a complete ban is not going to happen.
The trouble with this is as others here have said, it's a futile argument until money & lobbying is eliminated or until political will becomes strong enough for it to change.
The arguments I bet nearly all of us have seen or heard or indeed had are batshit. Cars are more dangerous, it's not the gun it's who is holding it, there's no such thing as gun violence, it's my constitutional right to defend myself against a corrupt and tyrannical government. If that were the case surely they would have done so against Bidens or Obama's? More good guys with guns stop bad guys with guns, more guns are the answer. If we give up our guns the bad guys will still have them. Arm teachers, have more security at schools. The latest one is all mass shooters are transgenders and liberal. All those arguments are piss weak and easy to counter but many just won't accept even the slightest argument against, let alone facts and will just evade or throw nonsense back in retort.
No matter what you come back with they, like MAGA nuts will always have an answer for excuse, and rarely, if ever will it make sense or be logical. It goes to the absolute core of US history and culture and that is what is going to be so difficult to change. Education from an early age is another key to breaking this issue, but it's doubtful you will get that in schools in many States.
There is a huge percentage of responsibile gun owners out there that absolutely agree with restrictions and law change, just not necessarily a complete ban. Sadly they always get lumped in with the more extreme ones, and attacked and branded the same. Ultimately even if you don't agree with guns being legal, they are, and by attacking every owner you lose the argument pretty quickly.
A complete ban is never.going to happen, not in anyone heres lifetime anyway, so you have to work towards what is possible. An assault rifle ban has happened before, magazine sizes can be restricted, tougher background checks, even limits on the amount of firearms owned. Or certain guns only allowed to be kept at gun clubs or ranges. But going after a flat out ban in the USA isn't going to work. So you have to go back again and work at what could be achieved and work with sensible owners to help get that across the line.
I go back every single time to the Jim Jeffries sketch on guns, as I honestly think it's by far the best way to explain the whole for and against argument and is still as relevant and on point today as it was when he first performed it.
At the end of the day, ya'll just like guns.