I think it's very difficult that somebody who plays whatever sport could think that doping must be legalised. I've practised sports since I was a child, in a competitive level sometimes but nothing so much important, and the essence of the sport it's that it must win the best not the most cheat, in consequence, if you let play with doping you are rewarding an opposite behaviour. That have no sense, do it?
The best struggle against the doping is to make blood tests more frequently, in any sports, it's necessary to stop the common use of drugs in long length sports overcoat.
Anyway, I want to say that sometimes we are apologysing the use of doping, the athlete could be a victim of his own team or of his own life, if you are a top-class cyclist and you have to hold on 3 weeks at the stronger competition around the world, I mean to Tour de France, of course, and it's level is year by year harder, nobody can imagine how they can resist it. The Tv contracts are millionare and without it nobody could be earned as well as they do and that leads to show spectacular images to improve his share infinitely. Another example is the NFL ligue in the USA.
If we all want healthier sports and to stop doping we have to stop to increase the demands of this mediatic sports also.