It’s a bit of a fantasy for leftists to have guns - if there were ever a leftward surge across the US (lol), that’s when you’d suddenly see how quickly the government can enact stringent gun controls.
The main reason why civilian-owned guns are so widespread is because said civilians are indoctrinated rubes who pose no real threat to capital; that, and so the arms industry has an additional revenue stream - one they’d give up if people were using their guns to form armed soviets