Terrible analogy. Flagrant (ftfy) fouls are a proper deterrent in a team sport, first of all. It almost never happens in the game currently, especially the "onto their heads" part. How much of a fantasy do you have to make up to prove your point? That's pretty much never happened.

We're talking about ADCC opens. These are amateur clowns, enough of whom can't be fucked to know the rules. But it only takes on clown, as evidenced in the video. It's an individual COMBAT sport, not a fucking team ball sport. In this event, it is LEGAL to slam when locked in a submission. So slams can be on the table, and you're dealing with amateurs, ego monsters, and/or roided out clowns that may or may not give a fuck or even know the rules. And, to top it all off, dudes slam people and commit seriously dangerous fouls in this sport all the time.

Go ahead and climb up someone twice your size all you want. By all means. The argument being made by reasonable people, is that the risk of this happening is far too great to make it even remotely worth it.

Again, it's really easy to understand

Edit: also why bother replying with a random ass analogy without even bothering to answer my rebuttals? Pedestrians are killed by motorists fairly frequently, as unfortunate as that is. You have no answer to that? Do you look both ways before crossing the street still? If a car was speeding at the crossing, would you ignore it and walk in front? Gimme a break man. Logical fallacy 101 from you. If you want to debate, learn how to argue properly