..and they did away with the need for circumcision and keeping kosher too.
Let me suggest that one
could take the approach that "images in worship" was at times more and at other times less important to Jews. After the christians began worshipping Jesus (or icons?), they recoiled and in reaction and became more "anti-image", than they in fact had been at christianity's first appearance.
...I'm not convinced of it, though.