I, for one, would like to see steroids decriminalized. For every person juicing up with expertise like A-Rod, there are young men getting it through back channels, risking prison time, having no decent guidance on how to use it, and risking their health to use the stuff. Instead, I'd advocate making it legal through approved healthcare providers. I don't think (except in the cases of Low T, where it is already legal) it should be covered by health insurance, but instead it can be like plastic surgery where it is seen as a cosmetic category of medicine. Then the people that want to use steroids can do so with guidance from an actual doctor that can keep them from really doing great harm to themselves. It will also keep otherwise benign young men (and a few women) out of jail.
I'm not sure if I would want that to be a part of baseball or not, though. Still, one of the worst parts of the "just let them juice, don't make it a witch hunt" argument is that it assumes that everyone can risk criminalizing themselves to compete in baseball. I don't like that people would have to do that.