Baseball and the Juice

I don't like it when I hear people call Mark McGwire, Barry Bonds, Sammy Sosa "cheaters" to be excluded from the Baseball Hall of Fame and their homerun records annotated. Cheaters, I suppose, compared to those who weren't known to have used performance enhancers?

Homeruns are just between batter and pitcher. Ruth and Aaron set their records against the pitchers of their times. McGwire and company blasted theirs against the pitchers of theirs. The latter three cheated against their pitchers? Ruth and Aaron never faced the pitchers McGwire, Bonds and Sosa faced. Are we sure those pitchers weren't "cheating" as well? Thus, steroids vs. steroids, those homeruns should stand.