It's never going to stop. Football players have been roided out for decades. Hockey player abuse sinus clearing drugs so that they can breathe better during games. Everyone is pounding down five hour energy before games. Back in the 70s, they all used speed. In the 80s, half of MLB was on coke.
I say let them do whatever they need (and want) to do in order to play at their best. Judge them by performance, not by how they achieve that performance.
Concentrated power has always been the enemy of liberty - Ronald Reagan