Invisible? That's a serious level of hyperbole.The MX door is already open but invisible because it is in the air and you might not see it.
And, you continue to ignore multiple points. Particularly the fact that hatch backs already pose the same problem and we don't have piles of dead and decapitated cyclists.
Edit: Aw, screw it, I'm arguing with a crazy person. On the block list you go.