You've had a couple of hundred years to fix society with your guns.
I think we can agree, it's not going well.
Again. You can't take guns and then try to fix the "social democracy". It has to be (if that's even possible) done the other way round.
999 people were shot and killed by police in 2019
https://www.washingtonpost.com/graphics/2019/national/police-shootings-2019/
Discussion
Because it isn't perfect, it doesn't mean going fully totalitarian will be better. Thousands of people get killed by the governments on yearly basis, yet you have faith in them stopping it. They won't.
Tell me how that's better than giving people a chance to protect themselves? Do you support people in Ukraine, protecting themselves? These ones had no chance: https://en.wikipedia.org/wiki/Vinnytsia_massacre