No he accepted a donation from someone clicking on a donate button most likely. What? You plan on requiring a check on every person that donates to any campaign? Do you realize how much that would cost? Who is going to decide what equates 'good' and 'bad' speech? You? Me?
There are positions that other candidates hold that I disagree with. Shall I have the right to demand they return the money to those supporters? Do you even see how ridiculous this position could get very quickly? Unfortunately it has gotten that way almost already hasn't it? And it is exactly what Dr. Paul says it is. Pandering.
Of course you don't actually care, you have a predisposition against Dr. Paul so by default he must support racism. That about the gist of it?