On multiple occasions the bigots searched the London marathon's unranked noncompetitive division specifically to find trans women to try and bully out of the sport. That's not what anyone would do when concerned about fairness.

Any claimed concern about fairness is a smoke screen for their real goal of making trans people not exist.

You cannot appease them by changing how things are ranked. You cannot appease them by banning trans athletes outright. They won't stop at sports. Any appeasement in sports will just let them focus fully on the next right they're trying to eliminate.

Trans women are at a disadvantage in most sports, if they've been on HRT long enough. Appeasement is an admission that the bigots are right, but they aren't. You have to fight the bigots on every front.

if organizers judge that having been AMAB is a physical advantage for that sport.

Good idea in theory, pretty unfair in practice. Think about the "physical advantages" that we already accept in elite sports - Michael Phelps, for instance, obviously is an impressive athlete but also has some obvious genetic physical advantages. Think of the shortest man you know and the tallest man you know - are they automatically on an even playing field in basketball because they're both men? Don't we kind of just look past that kind of physical advantage?

My experience in fencing/HEMA is that height is the greatest physical advantage, far beyond AGAB. It's a pretty obvious advantage - more height generally means more reach which means you can hit an opponent before they can hit you. So practice tends to be co-ed, if people are paired off to make equal matches there's a tendency toward equal-height matchups. Then, when we go to compete, there's gender divisions for very little practical reason.

The ultimate issue is that AGAB alone is not a great indicator of athletic performance. "Physical advantages" exist even among cis athletes and trans athletes really only call attention to a problem that exists in elite sports anyway. It's also worth saying that sports science isn't a solved field and we're just now coming around to a better understanding of fascia and just how important it is to movement. Fascia is extremely responsive to hormonal changes and with time will more closely reflect a trans person's hormonal composition than their AGAB.

These sorts of advantages maybe matter in elite competitions, and I am willing to accept that AGAB isn't meaningless when discussing physical advantages, but at an amateur level (where the vast majority of athletes are at) it's a lot less relevant. But unfortunately, our amateur sports mimic elite sports and if elite sports buy into the idea that trans people are just inherently physically different to the extent that they cannot compete in the same way, alongside others' genetic physical advantages, then amateur sports take that attitude too and suddenly you get people pushing for genital inspections in kids' sports.

The reason that this sounds like a bigoted solution is that there aren't enough trans athletes in the country for a league of our own to have actual competition, and just doing the awards separately obviously isn't enough since the bigots are still complaining that we are allowed to participate in sports at all.

Equality will always feel like oppression to those who benefit from inequality, and there's no liberal workaround solution to the objections from the haters because their claims about "fairness in sports" are insincere. If the point of the divide between genders is to make space for women in sports, then excluding some women because of personal characteristics out of their control is unfair. And if the argument is about some (real or imagined) performance difference between cis and trans athletes, then the fair thing would be to set up ranked leagues so that everyone can compete with people near their own level of ability.

Sports are about friendly competition, healthy opportunities to better ourselves by testing our bodies and our skills against our peers. The right thing to do here is pretty obvious, the problem is that there are people who don't want to accept trans folks as a valid part of society and we won't be fixing that by fiddling in the margins of sports rulebooks.

The simplest solution is stop gendering individual competition. Run everyone together and sort the results by gender later if that's your prerogative.

I don't think being American at birth is an advantage anywhere