We have an accusation of rape vs. a denial accompanied with a statement of consenual sex. (What man ever confesses that he has raped or murdered a woman ? They all lie through their teeth with their defenders. If we are fortunate we convict them.)
Exactly WHAT is there to stand up against at this point? (The William Jefferson Clinton defense)
Without a finding of guilt by a court of law, what you ask them to do is speak out against an unproven accusation. To damn the accused without basis? (Scott Peterson on line 2 could use your pro bono help)
Isn't that EXACTLY what you are doing....damning players in the NBA without basis? (Actually if they are damned it is of their own volition and there is certainly a sufficient basis)