Allow me to answer your question in 3 ways, so you can choose the right one depending on your attention span:
First, the gold standard for studies on this is currently one published by CCES, the Canadian Center for Ethics in Sport:
https://www.cces.ca/sites/default/f...esandelitesport-ascientificreview-e-final.pdf
If you want detailed information on the fairness of it, there is currently no better source.
If that's too dense and dry for you, I wrote an article that covers it in the section on the science, where I try to make the important bits more accessible:
https://throwproud.com/pdga-gender/
If that's still too long for you, here's the most relevant quote:
"There is no firm basis available in evidence to indicate that trans women have a consistent and measurable overall performance benefit after 12 months of testosterone suppression. While an advantage in terms of Lean Body Mass (LBM), Cross Section Area (CSA) and strength may persist statistically after 12 months, there is no evidence that this translates to any performance advantage as compared to elite cis-women athletes of similar size and height. This is contrasted with other changes, such as hemoglobin (HG), which normalize within the cis women range within four months of starting testosterone suppression. For pre-suppression trans women it is currently unknown when during the first 12 months of suppression that any advantage may persist. The duration of any such advantage is likely highly dependent on the individual's pre-suppression LBM which, in turn varies, greatly and is highly impacted by societal factors and individual circumstance."
But using terms like "biological males", you're not concerned with fairness - you're here to express your disdain for trans women. If you were here to talk about the fairness of trans women competing, you would call us what we are: trans
women. If you're consistently getting called a transphobe and a bigot, it's because you're using hate speech when you talk about us. If that's a problem for you, change the way you speak; don't get mad that what you say has negative connotations.