Why is a corked bat or spitball "only" stealing from your mom?

Because the competitive advantage of doing both those things is not that much greater then not doing those things. How many more feet is a corked bat gonna give you? Many scientist say none. But even if does give you some, it's not gonna turn a 30 homerun guy into a 50. Same thing with a spitball. Did the invention of the cork bat lead to a dramatic change in the amount of homeruns hit and completely change what was considered normal? No.

Not to mention that Albert Belle cheating with corked bat doesn't make Barry Bonds right.

I didn't mention Albert Belle, but in any case, you're right, cheating is cheating. But you're also wrong, because cheating is cheating.

I don't think anyone has shown how much farther the ball goes with steroids either. As mentioned above, Marvin Benard used steroids.

Cheating is cheating and Albert Belle got the punishment he deserved for the "crime" he committed. There are no absolutes in life. Bonds needs to reap his punishment. Steroids will not make me a power hitter in baseball. But they'll turn a triple A player to a big leager (Jeremy Giambi), a hall of famer to a legend (bonds), and pretty talented guy to a hall of famer ( Sosa, Palmero, etc.). It also depends on what and how much steroids you're doing. Fact is they do make you infintely time stronger and gain muscle weight which helps you hit alot further. That much can be shown. I played sports alot growing up and there were several guys on my high school football team (i know different sport but) using roids and it made a big difference. It's obvious to anyone with open eyes that it'll increase your power in any sport you play.

Okay, that's fair. So Bonds should be punished, assuming it can be proved, the same way Palmeiro (and Benard ), Brett, Nettles, etc. were. But while that may satisfy you, I don't think it will satisfy most people posting in this thread.