This is not one bad apple. This is an entire orchard.
At some point, where the proven drug users are merely fractions of percents ahead of the others, (The Tour is usually won by dozens of seconds over hundreds of hours of racing) should we not think that no-one can compete at that level without drug use. And just try a reboot. Or stop the whole thing.
I am totally in favour of encouraging fitness - but most olympic level athletes are frankly ignoring their bodies screaming at them to stop. cf the biographies of any marathon runner.
That seems unhealthy
This is the closest article I can find to my memory : https://www.smh.com.au/sport/cycling/tour-de-france-the-hall...