You are required to be of Jewish heritage. The state has no right to tell you what your beliefs should be. Even if he is Christian, which he claims he is not, if he was born Jewish or converted to Judaism, the law of return applies to him. This is just a silly bigoted person's decision.
Poland's central bank head calls story of Nazi train find a hoax (Reuters)
from the article: Israel refuses to let Barbra Streisand's cousin make aliyah