I have no problem with anyone transitioning, though I would question exactly what it is that they transition into. It’s pretty insulting to suggest that being a Female is simply a ‘state of mind’ or for that matter a straightforward matter of reassignment surgery or hormonal modification…. They will never be biologically Male or Female, regardless.
So to that extent I don’t think it unreasonable to refuse access to competition that is currently categorised by biological sex. Whether there’s an argument to consider alternative classification for sports people I’m not sure.. One thing that I’m certain about is that we cannot simply shoehorn individuals into existing biologically determined categories and call that OK, because unfair advantage, to the point of diminishing the value of the competition and potentially excluding the highly skilled / competent female athletes from competition…. Crikey, women have fought long and hard to gain parity with their male counterparts in sport and then all of a sudden we think it’s acceptable for men to shove them to one side and essentially dominate their sport by stealth?
You mention her livelihood, yet zero recognition of the livelihood of those her inclusion affects. Female Athletes who’s achievements are based on merit as opposed to a very obvious biological advantage.
It’s also not remotely narrow minded to call ‘her’ a sports cheat. At the end of the day she is engaged in the competition in the full knowledge that she was grossly incapable of competing anywhere near this level in male competition and that under normal circumstances even her age would render competition at such a high level to be practically impossible. However such is her physical advantage (due to essentially being a biological male) she can suddenly ‘compete’ at Olympic level.