A Nazi and an “undesirable” are locked in a room together. You give the Nazi a gun, but somehow, magically, you haven’t made their soon-to-be murder victim “more vulnerable”. But if I say “stop giving guns to fucking fascists”, I’m the one making people “more vulnerable”.
Of course, it doesn’t end there. When people ask you why the fuck you’re always giving Nazis guns, your answer is “well the minority could have had a gun too, so they’d have been even, but only the Nazi asked”.
But “evening the odds” by arming neither? Nope, that’s unacceptable, the odds can only be evened with guns.
Sounds to me like you’ve been getting your opinions from racists and people who profit from gun sales and you haven’t even noticed.