number of gods. The basic differences in world view is what cause the Gra to see groups slipping pagan religion into the Torah world, and to put them into excommunication.
These group might be called pagan Judaism since they make a show of their Jewish rituals, but their practice and beliefs are pagan. They worship others gods i.e. men that they believe control the will of God.
Pagan religions contain theogonies, birth of a god, "theogony", accounts of the births of gods. Thus in Pagan Judaism there are also celebrations of the birth of their gods. In Torah, God controls the world but is separate from it. In pagan Judaism, their views change according to whom they are talking to but mainly their views go according to the Bhagavad Gita and Hindu religion.
But the way people get hooked is that they are fed droplets of the belief system. Only small amounts. So by the time they see the abuse and get abused themselves they are already hooked.