i don't like competition. i'm not going to follow this. but i am trans, and i'm beginning to view this consideration as a litmus test regarding whether society is behaving rationally or not, given that there are a lot of issues in determining what's fair and what isn't and reducing it strictly to birth sex is the least rigorous way possible.
i have in the past suggested eliminating the gender category and focusing on tiers like weight, height and age instead.