Sex and violence rely both on consent. Sports are a method of reducing violence in war. Instead of fighting for real to the death, just get the tension out of their system.
Archeological evidence shows that synagogues often had Hellenized imagery including zodiacs. The Temple had graven imagery all over the place. Judaism, contrary to the claims of biblical authority, was never 100% monotheistic. Monotheism is a political ploy, not a reality.