Yes, anyone
can say anything. You can say you hate all green things and then say you love green beans. You would still be making a contradictory, hypocritical statement. Secondly, I never said you couldn't agree and disagree with the selection process at the same time.
I said, you couldn't commend the committee's moral decisions on steroids, cheating, and gambling--their main--ethical decisions and then call that decision process "extremely flawed" and "erratically implemented." Those phrases don't apply to selection processes you commended as being successful.
If you're in favor of banning players from baseball, you're argument is ultimately subjective. Morality is subjective (and any argument to keep them out is a moral/ethical one). I'm fine with that.
First of all, you yourself argued for banning players from baseball, and you based it on principles outside yourself. So, you don't really think the decision is entirely subjective. That's a good thing, since morality isn't. Morality is partially based on the objective material world around us and societal structures informing and superceding our subjective opinions. This applies to baseball morality, where the objective rules and principles of baseball inform baseball's particular morality. So, those--like you and I--judging Rose unworthy of the HOF are
not being entirely subjective.
If you're in favor of adding these players to the hall, you're argument can ultimately either be subjective or objective, preferably it is objective; because it's based on numbers.
This also is inaccurate. Nobody is making a purely objective statement when arguing for Rose's place in the Hall. They are putting personal value on what merits inclusion, what constitutes immoral baseball behavior, and whether or not morals have a place in such a decision.
All of those decision factor in subjective perspective. So, people arguing for Rose being barred are being subjective and objective, as are people voting for his inclusion in the HOF.