I'm curious to hear what trans people and allies think of trans women in women sports.

@EmosaurConclusion from same source disproving the fairness of bio men / bio women.

The current IOC regulations allow transwomen athletes to compete if testosterone levels have been lowered to <10 nmol/L for 12 months prior to competition. While this begins to address the advantageous effects of circulating testosterone on athletic performance,[b] it does not take into account the advantage afforded by testosterone exposure prior to transitioning[/b]. The existing data suggests that lowering testosterone to less than 10 nmol/L for 12 months decreases muscle mass but not to biological female levels and [b]despite the decrease in mass, muscle strength can be maintained, especially if concurrently exercising.[/b] Estrogen therapy does not affect most of the anatomical structures in the biological male that provide a physiological benefit. Hemoglobin levels are lowered by estrogen therapy, and consequently, maximum aerobic effort may be lower, but this parameter will only be manifested if testosterone levels are suppressed to levels within the biological female range and maintained for extended periods of time.[b] Reported studies show it is difficult to continuously suppress testosterone in transgender women[/b]. Given that the percentage difference between medal placings at the elite level is normally less than 1%, there must be confidence that an elite transwoman athlete retains no residual advantage from former testosterone exposure, where the inherent advantage depending on sport could be 10–30%. [b]Current scientific evidence can not provide such assurances and thus, under abiding rulings, the inclusion of transwomen in the elite female division needs to be reconsidered for fairness to female-born athletes[/b]