Did the Jews really make anti-Semitism a capital offense in the Soviet Union.

Damn right they did, and what's more, they are going to do the very same thing here if kwans don't begin to wake the fuck up.

Stalin's letter : Reply to an Inquiry of the Jewish News Agency in the United States" dated January 12, 1931 indicated his official position of the Soviet Union:

In answer to your inquiry: National and racial chauvinism is a vestige of the misanthropic customs characteristic of the period of cannibalism. Anti-semitism, as an extreme form of racial chauvinism, is the most dangerous vestige of cannibalism. Anti-semitism is of advantage to the exploiters as a lightning conductor that deflects the blows aimed by the working people at capitalism. Anti-semitism is dangerous for the working people as being a false path that leads them off the right road and lands them in the jungle. Hence Communists, as consistent internationalists, cannot but be irreconcilable, sworn enemies of anti-semitism. In the U.S.S.R. anti-semitism is punishable with the utmost severity of the law as a phenomenon deeply hostile to the Soviet system. Under U.S.S.R. law active anti-semites are liable to the death penalty. [Source]