The controversy over PEDs has been raging on for quite some time. People have different opinions over the matter, but generally speaking people are against PEDs in professional sports. All you need to do is look at the official stance of professional leagues; it is clear that these leagues do not believe that athletes who use PEDs should compete with "clean" athletes.
The NFL has these new rules:
A first violation of the PED policy will result in a suspension without pay for up to six games depending on violation: • Positive tests for diuretics or masking agents will result in a two-game ban; • Positive tests for a steroid, stimulant or HGH will result in a four-game ban; • Evidence that an attempt was made to manipulate a test result will result in a six-game suspension.
Major leagues baseball has similar rules as well. I've attached a PDF for more information.
Based on these rules, it is clear that people who have put a great deal of thought believe that athletes who use PEDs should be penalized. Part of the reason for this is that they have an unfair advantage. Moreover, PEDs are harmful to the body. Finally, people who use them set a horrible example for younger athletes. In light of all these points, I believe that PEDs should be outlawed in professional sports.
Please do look at the links below for more information.