The Church Christ founded, knew from the start, that radical jews would be taken on by Satan/demons. To be pretenders, to take over not just Church but in all high places, which you see today. God has permitted this. Chapter 12 of Daniel says the continual sacrifice of the Mass will end. That will last about 3 and a half years.
Church knew, therefore popes said, no support or protection for jews. Inquistions questioned those clergy who were suspected of being pretenders. Nations protected their borders of jews.
After Pius X, there was a change, where no support and no protection of jews ,are no longer mentioned.
Satan will not waste his time with other sects. He will destroy where truth and precious blood is.