[Irobeth]

Just quoting the wiki on this:

There has been considerable controversy over whether or not Fox possesses an advantage over other female fighters. In an interview with the New York Post, UFC women's bantamweight champion Ronda Rousey said that she felt Fox had an unfair physical advantage due to having "the same bone structure a man has".

Eric Vilain, director of the Institute For Society And Genetics at the University of California, Los Angeles, disagreed, stating in Time magazine that "Male to female transsexuals have significantly less muscle strength and bone density, and higher fat mass, than males". Vilain reviewed Fox's medical records and supported her right to fight as a woman.

Vilain, who worked with the Association of Boxing Commissions when they wrote their policy on transgender athletes, was also quoted by Time as saying that, to be licensed, transgender female fighters must undergo complete "surgical anatomical changes ... including external genitalia and gonadectomy" (see sex reassignment surgery) and a minimum of a subsequent two years of hormone replacement therapy, as two years is "the current understanding of the minimum amount of time necessary to obviate male hormone gender related advantages in sports competition". When asked if Fox could, nonetheless, be stronger than her competitors, Vilain replied that it was possible, but noted that "sports is made up of competitors who, by definition, have advantages for all kinds of genetics reasons", and said that it would be discriminatory to treat Fox differently than other athletes with potential genetic advantages.

Time also noted that, as she has neither testicles nor ovaries, Fox probably has lower testosterone levels than most of her competitors.Fox says that she has less strength and endurance than her female training partner, and that she has to make up for it by perfecting her technique.

Fox responded to the allegations made by Rogan and Rousey in a guest editorial for bloodyelbow.com. She claimed the advantage of taking estrogen resulted in bone density, which is also a side effect of taking testosterone. She challenged Rogan and Rousey to make such claims about black women who have been noted scientifically, to have the same bone density as white men. Finally she questioned how a '"male frame"' can produce the massive "punching power" that Rogan speaks of without male muscle mass behind it.

it would be discriminatory to treat Fox differently than other athletes with potential genetic advantages.

This is Chemda's point.

Most fighters who are choosing not to fight her are doing this on a platform of "she took an elective procedure which allows her to use her genetic advantage", and that's their prerogative to do so. Ronda Rousey has a record (11-0) to protect, too. If she thinks she's at a disadvantage of course she's going to use this as a scapegoat to avoid putting her title on the line.

Fox's record is 5-1, her loss was a TKO to strikes, and only two of her victories are KO/TKO that she caused. One is an injury on the part of her opponent, two are submissions, so she's not just out there crushing face.