They weren't talking about FLOSS here. They weren't talking about free or proprietary software, they wanted
no software> Personally, I prefer no computer control.
They're not arguing for free software controlling their car, they're arguing for no software controlling the car. No software controlling the car means generally less safe cars with higher emissions on the road. Higher emissions hurt the people around them. Not having common safety systems like ABS and traction control make the cars harder to operate on normal roadways, leading to a higher likelihood of collisions.
They're arguing they should be free to operate less-safe cars which emit higher emissions on public roadways, and that everyone around should just accept it. Arguing otherwise is arguing for an authoritarian socialist dystopia.