Countries and contestants have all agreed that doping is not allowed. If you promise something and have no intention to keep the promise you are in fact a liar.

There has been, and probably still is, a government funded doping program in Russia. So not only have their contestants been proved to be cheaters, Russia has been caught sponsoring it all too.

So while you like to derail this discussion towards on whether doping should be allowed or not it still doesn't change the fact that Russia actively promoted cheating.