The Catholic Mary is truly Semiramis?

I've have been doing deep research over this topic that Catholic Mary isn't really the real biblical Mary Jesus mother Mary. I always find it interesting how Catholics claim they do not idolized Mary when they have pictures and statues of Mary all over the church. A friend of husband and I claims that Catholic Marie is in reality Semiramis how the Vaticano has lied to the Catholic society with bad information. A few Catholic friends of mine at work claim that the Catholic Church is the truth and only Church I find it hard to believe. Now Jesus was born in Jerusalem and preach now how on Earth did the Vatican ended up in Italy when Jesus was never born in Italy? I remember a priest got so aggrieveded and super angry at me when I asked him this question and of course he had no answer and had no idea how to respond all. He told me to just believe in Catholic Church and NEVER question it. Later I ask the priest so you want me to idolized that Vatican later the priest told me to stop being a smart alec. I was shocked. So this called my attention and it makes me want to know more. So is Catholic Marie truly Semiramis? I won't be surprised if I see some Catholic get angry a my question but I am not attacking anyone I just want to know if a Christian here maybe has some good information.

The Catholic Mary is truly Semiramis?
Post Opinion