Shabbat Is The Cornerstone of Judaism

Rambam writes something very interesting in uh chapter three number four he writes when a Jew is a kufair worships false deities or desecrates Shabbat in public we do not accept any sacrifices from him at all even a burnt offering that is accepted from a boy, a gentile is not accepted from an apostate or Shabbat. As we learned from Leviticus 1:2, which states, "Man, uh, from you who will sacrifice." According to the oral tradition, we learned that from you is not from all of you. It excludes the apostate. It excludes the Shabbat. But here the Rambam says something very interesting. He says, "Listen, if you believe in other gods or you violate Shabbat, the is not accepted is not accepted." Wait, somebody prays to, let's say, JC Petty or prays to a rabbi or prays to, I don't know, picture, is the same thing as somebody that drives on Shabbat. How could this be? How could this be? The guy is praying to somebody. Okay, fine. I understand why he's not. Why is the guy that's driving to shul on Shabbat? Why is he why why is he why is the problem with him? So the Rabam explains in Shabbat that someone that violates Shabbat is equivalent 100% to an idol worshipper because the idol worshipper and him are both desecrating Hashem's name because Shabbat is the cornerstone just of Jud of the Jewish faith just like believing in Hashem is.