The post-Christian right will often call Christianity Jewish, having largely come out of rigorous dispy sects or lapsed Catholic ones, both disconnected from their roots.
The e-Christian will often note that the greatest antisemites have always been Christian. This is true, Christians are historically antagonistic to Jews, but their tactics and the drive that leads them to destroy anything beautiful they touch is largely the same, which is why it's so easy to sell normies from both sects on a practical alliance.