There's the nuance that tomjohn was looking for me to admit to, above.

Then again, there are a lot of destructive things that are enjoyable. Should we let our kids play tackle football? Or box? There was a time when that was perfectly normal, and I'm sure it's a lot of fun for a lot of the kids. But it's not good for them.

But this isn't about what's good and what's bad.

My point about it being silly, and how that relates to this discussion, is the role of biochemistry. If biochemistry really gives people such a strong advantage (as I think one can validly argue here, and as we've seen in numerous doping scandals over the years), then is it really people who are competing, or is it biochemistries that are competing? And if it's biochemistries, why should anyone care?