You say people should just give up their weapons. I used to be strictly against private weapon ownership too. Over the years, especially the last few years i see more and more of a necessity for people to be able to fight back against an overreaching government, as we have seen more and more authoritarian developments all across the "Western" nations.

This is what Marx referred to.

There is a political case for private weapon ownership. The obvious counter-argument is that people like MAGA also have weapons then and can use them. As we have seen with previous and current dictatorships, when push comes to shove the regime will quickly supply its paramilitary wings with guns, so i don't see the benefit of preventing normal people from owning weapons in such a situation.

None of this is a judgement on the green-text, as we lack the whole picture, on whether taking the weapons from anon was justified or not. However the default assertion that people should just give up their weapons is not as obvious as you make it out to be.