You aint left buddy, youre a clinton liberal who thinks hes a leftist
Let them compete.
There’s pretty much no reason to deny them.
All that gating access to sport based on testosterone levels does is hurt cis women with abnormally high testosterone. Look at the shit they pulled with Caster Semenya.
Aside from all that, if a trans person is on HRT, they’re going to have androgen levels congruent with their gender and thus no clear advantage or disadvantage based on their AGAB.
The arguments against trans people performing in sports are bioessentialist bullshit that relies on ignoring all the biochemical processes that affect the development of muscles, just so they can pretend having a Y chromosome makes you a muscular manly man man.
Edit: shitty autocorrect meant it took four attempts to type cis :(
