I live in a neighborhood where the same Model Y you can buy at the dealer is driving around by itself with no one behind the wheel. I've already completed your challenge.
If you don’t believe in it, just say “I’m going to advocate for it because of my belief system and feelings but I don’t trust it myself.” That’s far more intellectually honest then “I believe in it enough to aggressively defend it publicly but won’t stand in front of the car because I don’t actually trust it.”
You can still be right that Tesla vision only system are more dangerous, but your experimental challenge proves nothing because the cars are already live driving in the real world under poor conditions.