I’m torn on the idea of arming leftists in the current climate. I don’t disagree with you there. I live in a somewhat rural area that is heavy Trump and the right wingers are heavily armed. I don’t blame a trans person for arming themselves to defend themselves in an area like this, and my post history reflects as much.

That said there is a difference between arming yourself and actively contributing to increasing the amount of arms in the world. And what made it interesting is you claimed this is an ethical and moral issue. If your friend worked to only arm leftists that would be an interesting take. I doubt this is the case though. I am assuming they are like any capitalist based on your first line - anyone’s money is good enough.

To answer your question as others have said the hammer has a utilitarian purpose, as do knives, as does dynamite. With the exception of something like skeet shooting guns sole purpose is to rob the consciousness of a living being. I do not believe that the sport outweighs the risk. There are far less dangerous ways to hunt, we’ve banned things like lawn darts for less when the danger outweighs the utility. America just has a raging hard on for guns because of military fetishism