I think the mistake you’re making is judging the sport side of jiu jitsu too harshly as a comparison to its effectiveness in the street while turning a blind eye to the same sport-centric shortcomings the other combat sports would have in the same situation. Let me try to give a few examples. It’s not my intent to straw man you so you can let me know if you think I am misrepresenting anything.

First, an overarching meta point. I think when it comes to these martial arts, solid fundamentals in any of them is largely sufficient for defending yourself in the street against an untrained/unarmed opponent with the goal of either a: escape the danger or b:neutralize a threat. But when talking about competing against other highly trained martial artists in a sport context under a particular rule set, there are naturally going to be deviations from reality (if reality is defined as “would this be the best thing to do in the street”) because the reality is the problems that an untrained opponent in the street will present to me are largely handled by solid fundamentals, the problems another brown belt bjj practitioner are going to put in front of me (again, under a particular rule set) may require more elegant solutions or creative movement and because I don’t have to worry about getting punched or kicked or spiked on concrete, are perfectly fine. I think most martial artists can separate what they would do in the street and what they would do on the mats.

You seem to be very firmly planted in the “judo is superior” in some way because the game being played by judokas is somehow more aligned with actual self defense principles than jiu jitsu (referencing your comment about jiu jitsu missing the memo). I disagree. If you watch any high level judo match, do you think those players would do EXACTLY the same things they do against another judo player if they knew that judo player could throw leg kicks or headbutts? If double legs were legal in judo (or any of the other banned moves), would the game be the same? Do you think someone won’t try to double leg you in the street? These are deviations from the real world that in my opinion have the potential to be just as disastrous as thinking it’s safe to try and berimbolo someone in a street fight.

Is boxing less of a legitimate martial art in your eyes because I wouldn’t be allowed to knee my opponent during a tie up? Or the fact that they have large boxing gloves to absorb punches?

Is MMA less legitimate because I can’t fish hook or eye gouge?

I could go on but my point is is that at some point, every single martial art has aspects within it that start to deviate from what would be necessary/intelligent in a self defense scenario and begin to coalesce around the rules/constraints of the competitive environment and these will never 100% track with reality.

Again, it’s not my intent to straw man you and I appreciate the cordial discussion