How can one be ant-Semitic towards someone who is not even Semitic?

 

The Ashkenazis claim to be Semitic, which means of the lineage of Shem (one of Noah's three sons), BUT GET THIS...

Shem did not have any offspring named Ashkenaz, BUT YOU KNOW WHO DID? 

Japhet (one of Noah's three sons) had many sons, one being named Gomer. 

Gomer had a son named Ashkenaz.

So tell me..

are the Ashkenazi's truly of Shem....or Japhet!??!?