http://www.ncbi.nlm.nih.gov/pmc/articles/PMC1863580/
You'll note that until the onset of osteoporosis, the bone density is comparable between white men and black women, with black men having significantly higher bone density.
If I was feeling generous, I'd expect you to admit that I've provided proof. However, what I expect you will do is try to argue that this is due to some problem with the methodology (it isn't; the racial differences in bone density are well documented and the results have been replicated under different methods) or argue that there are other factors in play, such as diet or lifestyle. In anticipation of this, I've provided several links that examine this and find that there is little evidence supporting "lifestyle" differences or the like.
http://aje.oxfordjournals.org/content/171/7/808.full
http://press.endocrine.org/doi/full/10.1210/jcem.82.2.3732
http://ajcn.nutrition.org/content/71/6/1392.long
http://www.niams.nih.gov/Health_Info/Bone/Osteoporosis/bone_mass.asp
I suspect the honest respondent will admit that there exists scientific evidence for my claim, and that it is not "a crock of shit."
I'll tackle the other one later tonight, but I'd like to see you provide a similar level of evidence for your claim that muscle mass and strength aren't significantly changed by a hormone regimen to a degree sufficient to bring the treated individual into the normal variance for their assumed gender.
This is assuming said person is being dishonest, or cares more about the sport than they do about their transition. Discovery that somebody has been skipping hormones - something that is usually tested on a regular basis - would result in a refusal to support their transition by (reputable) doctors.