I understand your point but I just don't think it's fair accuse someone that you've never even met of something awful and then have people just say "I don't know, maybe he is". Hahaha.
Certainly not the standard I would want to have applied to me. To me, someone isn't a racist until there is some kind of clear evidence to demonstrate that they are.
I never said "Maybe he is." I said, "I don't know."
"I don't know" is not the same thing as "Maybe he is." I simply do not know one way or another, so I cannot make any claims.
My standard is: Lets gather all the relevant information before making a determination.
But, as you said, "To me, someone isn't a racist until there is some kind of clear evidence to demonstrate that they are." I 100% agree. If we define racism as purely observable behaviors, then I would say, "No, he is not racist because he has not demonstrated any observable behaviors to declare him a racist." However, if we extend the defintion of racism to include cognitions and emotions, then the current answer is, "We do not have enough evidence to make a claim." So, again, it really all depends how you're defining "racism." Once we determine an operational definition for the term "racism," then we can determine if the evidence is sufficient or not to make a claim.