Yes, early Bolsheviks officially condemned antisemitism as counter-revolutionary. They issued decrees against pogroms (1918), Lenin denounced them publicly in 1919, and the regime ran campaigns to suppress it.
At the same time they persecuted Christianity: thousands of Orthodox priests and bishops executed in the first years, churches closed or destroyed, and policies that contributed to millions of deaths overall in a mostly Christian population through terror, famine, and repression. Both facts are documented in historical records.