No, they should not. Performance enhancing drugs give athletes an unfair advatage. Performance enhancing drugs also hurt the athletes that use them. Performance enhancing drugs are a disgrace to sports and have made a mockery of athletes and the noble pursuit of sportmanship and athletic glory for the rest of the world.
Performance enhancing drugs should not be widely accepted. The fight against performance-enhancing drugs has long been framed as a moral crusade.The ongoing Russian scandal (which features bribes, extortion, and state security agents infiltrating a Moscow anti-doping laboratory to slip doctored urine samples through a secret hole in an office wall, all resulting in at least 111 Russian athletes being banned from Rio) is not, to them, a meaningful victory.
No, drugs used to enhance the performance of athletes should not be widely accepted. Sports professionals are widely respected and are seen as role models for the children of the world. They should refrain from unethical behavior, and if found guilty of using these drugs, should be removed from competition.
When people watch sports at the highest level, they want to be amazed at what the human body can do. At the lowest levels, children want to believe that they, too can grow up to do these amazing things. Feats of athleticism are somehow less credible when drugs are a matter of course.