http://www.roitov.com/articles/sharon.htm
They lie on the site. All religious Jews hold by the "Ultra-Orthodox definition" of Judaism. So does the Israeli Government/Chief Rabbinate. The Law of Return does not say who is a Jew. It says who is given the rights of an oleh chadash. No one claims all the Russian goyim are Jewish. I saw the Teudat Zehut of a Russian goy in ulpan. It said Russian for leum (nationality). Mine says Yehudi (Jewish).
Sharon is a Goy
Much of this article would make no sense unless understanding how Ultra-Orthodox Jews define Judaism. None of them recognizes former Israeli Prime Minister Ariel Sharon as a Jew. This explains a lot the controversy he still causes in Israel in what probably are the last days of his life.
The State of Israel uses the Law of Return in order to define Jews. It adopted a unsatisfactory definition* compared to the one used by Ultra-Orthodox Jews. The latter recognize as Jew only someone born to a Jewish mother or that converted according to the Halakha, the Jewish religious law.+
Ariel Sharon's parents were Shmuel Scheinerman (1896–1956) of Brest-Litovsk and Vera Scheinerman (1900–1988) from Mogilev, both locations are nowadays in Belarus; yet, they met in Georgia after they fled WWI.
His father was Jewish. One of the reasons for the maiden surname of his mother not being in the public domain is that she was not Jewish, she was a Subbotnik. Most followers of this Russian Christian sect practice circumcision, do not recognize the New Testament, and observe Sabbath on Saturday. Their name is derived from the Russian name for Saturday.
After the war, they arrived at Israel through the Third Aliyah movement and settled in socialist Kfar Malal. Vera Scheinerman became Dvora Sharon, and in 1928, Ariel was born. Born to a non-Jew, he is a non-Jew.
What happened afterwards is the stuff legends are made of. Dvora Sharon decided to convert according to the Halakha. She accomplished that. Yet, Sharon was old enough to be asked questions by the Ultra-Orthodox rabbis that converted his mother.
Thus, according to the law, he was asked by the rabbis if he wanted to be a Jew. "No!" young Sharon said and went out to play with the dagger his father famously gave him as a birthday present when the toddler reached the age of 5.
Sharon never converted afterwards; thus he remains a goy. In 2005, there was an attempt to remove him from the Prime Minister office due to this embarrassing part of his past. Yet, Israel does not recognize the Halakha, thus this attempt to throw out the man that returned Gaza to the goyim failed.