He might be a reactionary rambling ranter but I do not think he is racist, though he is racially-minded and racially-oriented, like we all should be because there is no reason not to be proud of our roots even if we have to set a distance between some of their orientations and us.
An insult does not count as an argument. That is good enough for Trump, sorry for the tramp of a Republican candidate that is strutting on the stage.