It’s not racism, or anti-semitism — it’s the foreign policy.
I have to say, though, that while the word “homophobic” is vastly overused (for instance, it is not “homophobic” to oppose gay marriage, at least not intrinsically) the congressman does seem literally homophobic to me, based on this description of his behavior. On the other hand, one can be a homophobe, and still support gay rights.
[Update a few minutes later]
The trouble with Ron Paul’s defense on the newsletters.