HRT is already mandatory to compete at basically every level. The whole "you can just identify as a woman and compete" is scaremongering by transphobes.

Someone can be born a man, reap the benefits of a male puberty(bone structure, height, ect.), then become a trans woman athlete. That is a completely controllable path that circumvents some amount of training and preparation other participants in the sport have to do.

You make it sound like being trans is a choice one can make to give themselves an advantage, and let me just say, yikes. Being trans is not a completely controllable path, just as your height or if you're left handed is not.

The median trans woman is likely taller than the median cis woman. This does not justify why she should be excluded. We don't treat other categories like this, either. The median Dutch woman is taller than the median Korean woman. But you don't see politicians making a fuss about the Dutch in sports, now do you?