No one is arguing that the legality of gun ownership is the problem. It's irrelevant because it is a right in the US.

The argument is that the quantity, power, and saturation of guns are unusual.

The US has far, far more guns per capita than any other country[1].

We know from other, similar countries that changing laws works[2], and those changes do include reducing the ease of getting the most powerful weapons.

1. https://en.m.wikipedia.org/wiki/Estimated_number_of_civilian...

2. https://www.nytimes.com/2022/05/25/world/europe/gun-laws-aus...

In most countries it’s legal to own guns in Europe. The difference is they’re tightly regulated and controlled, you can’t buy a gun in a supermarket.

To equate European gun control with US gun freedom is disingenuous in the extreme. They’re not even remotely comparable.

Are the same people who can own a gun in US can also own a gun in those European countries under the same conditions?