For the record...re intersex incidence. the true prevalence of intersex is about 0.018%, J Sex Res. 2002 Aug;39(3):174-8. doi: 10.1080/00224490209552139.
In a case of this boxer...if she is intersex and that needs confirmation I hold a different view than if she is a delusional transexual man competing That ought not be allowed by any measure of either logic or stupidity
But if the intersex person who is a female, with a vagina and reproductive system and has comparable levels (within stated parameters) of testosterone as compared to other women ...then she get to compete vs women
If however her T levels exceeds those accepted levels ...then she shouldn't compete vs women as she is then competing using male physique, musculature, bone, skeletal and CVA characteristics than those of a woman.