Every time I read this stuff I have to draw comparisons to literally every other sport and how different physicalities and human body types are just a normal thing to accept there...as long as it's not about your gender.
Like, what about Basketball? Everyone who is over 2m large have an inherent advantage over people who are not as large. Everyone who is over 2,1m have an avantage over those. Guess what: They are still not banned. Because that would be insane and differences in physicality are just an everyday reality. So if a guy is 15 cm taller than another guy, giving him an advantage in playing the sport? Well, that's just the way it is, we can't just forbid him from playing Basketball, can we? That would be crazy! But if a transgender person is 15 cm taller than another person? Nope! Banned.
Guess what: Certain men will have an advantage in power lifting compared to other men, merely because of their physicality. Men don't just have 1 range of abilities everyone falls under, where everyone has exactly the same changes as the next man. For some people it will be quite easy to gain weight and build up muscle mass, for others it would be REALLY hard. And yet, they are both Cis Men. Shouldn't we ban every Cis Man who was already really strong and heavy as a kid, to make sure not to give them an advantage over all thos Cis Men who had to train really hard to get where the other Cis Man almost got naturally?
It's inane and the thought process only works if you still think that sex and gender are completely binary and every women is comptley the same as every other woman, simply because they have a vagina.