Every competition has rules and boundaries.
If you allow any sort of doping you essentially remove any boundaries, because there will always be some better drug, some better blood technique, etc.
The playing field will never be level.
The rules serve only to make it so that you can actually test yourself against another person. Not your doping methods against another teams doping methods.
And yes, doping only gets that last few percent of performance, and only matters at the very high end, but isn't the point of the competition to push everyone to the wall, and see who has that last little bit left to pull out a win?
Training, strategy, teamwork in the case of team sports, etc make vastly more difference than doping, but those are largely "solved" and everyone is really just competing for that last little bit.
If you allow any sort of doping you essentially remove any boundaries, because there will always be some better drug, some better blood technique, etc.
The playing field will never be level.
The rules serve only to make it so that you can actually test yourself against another person. Not your doping methods against another teams doping methods.
And yes, doping only gets that last few percent of performance, and only matters at the very high end, but isn't the point of the competition to push everyone to the wall, and see who has that last little bit left to pull out a win?
Training, strategy, teamwork in the case of team sports, etc make vastly more difference than doping, but those are largely "solved" and everyone is really just competing for that last little bit.