Is this fair?

[Aoi Magi]

I'm trans and I could never keep up with female athletes even when I was into sports in high school. I'm not at all built for that, though. I'm built more for reading books.

I also went to high school with a cis female body builder who could beat out most of the men at most athletic competitions. Advantage isn't just a gender thing.

Like Alex is suggesting, maybe we should just separate people into only competing with people exactly like them. That will make everyone happy, right?

Both you and Alex are dodging the issue.
We have always accepted that some people are naturally more gifted in certain areas than others, not just sports. What we are seeing now is a man made advantage through technological innovation. If you feel like Alex that sports are pointless, then neither of you should even be discussing this as it is... pointless.  

The implication that no limit on the height of basketball payers for instance, is no different than allowing an athlete to add man made performance enhancing drugs/devices to his/her body is a silly argument.  I get that you think it boils down to "life's not fair so who cares how someone gets an advantage" but that is simply ridiculous. I bet you don't take that view in any other area?

do you think changing gender, especially after full maturity, is just a change of clothes? Have you tried looking into how physically damaging it can be?

Sports rules aren't made randomly, there are already segregations where needed.