Why is it when one criticizes a non white persons performance they are automatically, by some few, categorized as racist?

Because it is they who are in waiting with their racist magnifying glass and yard stick. The key for them is if one does not agree with or accept what they think the non white is doing right......even if they are wrong or incompetent.

Welcome to the measuring of the day by the supporters and advocators of minority and special interest promotions.