Is This Racist?

That's the way fellow blogger Cobb frames his question about the Tea Party member pictured below.  I'd like to frame the question differently:

Based solely on the information in this photograph, would it be reasonable, justified or warranted to question the character of this man or draw the conclusion that bias, prejudice or stereotypes play a role in what he says and how he behaves? 

Leave your answer Yes or No and why you think so in the comments.