Out of interest - how many people do this? Trans and take part in sport? Its fairly horrific for those affected but I wonder if claiming entire generations are affected is a bit of a hyperbole.
There were enough female swimmers in Eastern Germany who could be persuaded (by what means, I know not, but I don't think they were outright coerced) to mess up their bodies by taking testosterone.
I do not think it impossible that some men will do it purely for the money and fame.
And since competing in women's sports is easy with the advantage of male musculature - males who would be at the end of their career in men's sports can still win medals that should have gone to women - the question is not how many males who can compete in professional men's sports will transition, the question is how many males in the general population will transition.
I think one should look at Iran for the maximum number of males who will transition given enough encouragement to do so.
Isn't most of their women's football team made up of males?