"Would you suggest someone go into the 100M Olympic Sprints, or US Baseball Homerun Derby, without using steorids? Where they realistically have no chance of success?"
Many years ago I was into cycle racing, the most drugged up of all sports. You are 100% right - without drugs nobody could ever win a race. BUT - with drugs you will very likely get cancer 5 to 30 years down the track. The choices are do it for fun, walk away, or win with a 50/50 chance of cancer later.
Here is one who won - unlike most he admitted the drug use before he died of cancer - Laurent Fignon