Meet Coatlicue, "The Mother of Gods", the Aztec goddess who gave birth to the moon, stars, and Huitzilopochtli, the god of the sun and war.
The word "Coatlicue" is Nahuatl for "the one with the skirt of serpents". She is referred to by the epithets "Mother Goddess of the Earth who gives birth to all celestial things."
She she was magically impregnated while still a virgin by a ball of feathers that fell on her while she was sweeping a temple. She gave birth to Quetzalcoatl and Xolotl. In a fit of wrath her four hundred children, who were encouraged by Coyolxauhqui (her daughter), decapitated her. The god Huitzilopochtli afterward emerged from Coatlicue's womb fully grown and girded for battle and killed many of his brothers and sisters, including decapitating Coyolxauhqui and throwing her head into the sky to become the Moon. In a variation of this legend, Huitzilopochtli himself is conceived by the ball-of-feathers incident and emerges from the womb in time to save his mother from harm.
One of the most striking features of the worhsip of Coatlicue and her kindred gods and godesses was that of human sacrifice - on one occasion alone over 80,000 humans were sacrificed over the course of 4 days for the dedication of a temple.
Nowadays, if I was to say that I worshipped Coatilcue as I consider her to be the most important god of all, greater even than Jayweh or Allah, and demanded the right to sacrifice humans to satiate her demands that she be recognised as the greatest god of all, I would rightly be classified as a dangerous psychopath and locked away in an institution for the incurably insane.
So why are Muslims who demand the extermination of those who do not share their beliefs about Allah or Muhammad not locked away?