There's a lot of variance between men at different weight classes as well. Two bantam weight boxers but if one is significantly taller they will have greater reach. We live in the age of algorithms and data sorting, I am sure we could create categories where there would be peerage between the competitors, regardless of gender identity. It'll take some effort to figure it out, but its not impossible, and damnit, we have the technology, there's no excuse not to try.