When the Bible speaks of God sending "a strong delusion, that it might deceive, if possible, even the elect" (meaning even some Christians will be deceived), I believe that it is talking specifically about this deception that is "Judeo-Christianity". It also says "my people perish for lack of knowledge", which is exactly what is going on here, as the Christians who support Jews do so because they are ignorant of the fact that Judaism not only teaches that Jesus Christ was not the son of God, but even goes to the extreme and blasphemes Jesus horribly.