I didn’t say isa AS existence was because of Jews . I’m taking in the sense of modern Christianity being a Jewish institution. Christianity is wholly wrong. It’s not a normal blunder to go and worship A human.
The Jews did not innovate that, blame the Greek polytheists- actually the Greeks drove out the Jews* from their religion, and literally since they innovated that 'isa is god' they have been beefing with the Jews for thousands of years until like the 20th century.
I do not want to dig for all the recipes of rabbis and church officials engaging in fierce back and forth with each other but it is there if you wanna look.
And it is incredibly common for the innovation of man-worship to arise... an example of this would be the Druze (who worship Hakim bi-amr allah) arising out of Ismaili Shi'ism. Another example would be the Mormans (who worship John Smith) arising out of Protestantism. There is probably like 30 billion examples of layman randomly worshipping some random important person in Muslim and Christian history it's just that with higher literacy in the 19th, 20th, and 21st centuries nobody falls into that anymore.
*Here I am referring to Jewish Christians (who most strongly rejected the trinity) not the Jewish religion.