We've treaded on this before. My objection to this is that while "clarity" is sometimes a valid principle, it's a poor one when it comes to rights (such as the right of a cis woman to participate on a level playing field, or the same right of the ftm or mtf transgender). Rights are concerned with those little remainders, and if we have to accommodate and bend, sometimes we accommodate. The clearest example is the disability laws and all those accessible bathrooms that go unused....we do it, even though the cost is wasteful for something infrequently used, because they have a right to go to the bathroom. Moreover, clarity is not one of the purposes of sports. Indeed, one of the problems with sports is that it is arbitrary....one tweak of the rule and a handball becomes not a handball....lower the hoop and suddenly short people get an advantage in basketball....sports is somewhat of an artificiality even the race sports like track and swimming (what distance...what start). as to "come as you are", what about glasses on a near sighted person, a kid taking hgh, an adhd kid on a stimulant, or an athlete to have a particular expensive shoe or set of golf clubs to give them an edge....all accommodations we allow. As to the t, it renders it all an arbitrary exercises...if a woman wins the race simply because she was born with an unnaturally high testosterone count, there is no virtue in that....it's why the Algerian boxer caused such consternation....it conflicts with the notion of sports being something we should strive to achieve by being the best.....it renders "being the best" without meaning.