Jerome Bibuld wrote:

Concerning "the fact" that Botwinnik "was a Jew", Scam Spam not unexpectedly
goes along with the racist lie that a person with a Jewish ancestor MUST be
Jewish, just as a person "with one drop of Negro blood" must be "Negro".
Judaism is a religion and/or a culture -- nothing more nor less. One is Jewish
if one professes that religion or accepts that culture as one's own.

I hear this from time to time, and can never quite get my head around
it. If a Jew, living in Israel, converts to another religion, what race
is he? Hebrew? I don't think anyone uses that word to refer to the race
any more. Israeli? Does he lose his racial identity completely when he
changes religion?

Isn't it simply the case that the term has two uses, and that someone
can be a Jew by birth/race and by religion?