If we are being scientific, lightsabers are impossible. Plasma doesn’t just end at a certain length and it’s like 9,000 degrees, which would melt anyone standing remotely near it.
Anyway, Starwars never made sense, just go with it.
It breaks up and punctures organs. Tiny holes. It doesn't mutilate anything. Similar to how people think a .22 in the skull will bounce around. No, it won't.....
Definitely not a highway vehicle for America. But it looks unique and fun for just popping around town, going to the store or whatever.
unrelated: new exhaust parts arrived.