You are wrong there. Both Christianity and Islam "piggybacked" off of the ancient, tribal form of Judaism. At least most modern Jews have pulled themselves out of this garbage. When are those who call themselves "Christians" coming out of the woodwork?
Christianity is the oldest of today's three Abraham religions. Jesus started it 2000 years ago as a fulfillment of the Old Testament. Talmudism (so-called Judaism) came next, developing slowly after the first century, as Antichrists belatedly responded to Christianity. And, third came Islam in the 7th century.
"Modern Jews have pulled themselves out of this garbage" is just your way of saying that modern Jews do not follow the religion of the Old Testament.
There's actually also a fourth religion, a very modern religion. They call themselves Christians, but they are not Christians. They say Jews are God's chosen people. Christians believe Christians are God's chosen people.