by Reb Gutman Locks
An idol is a finite object that is worshipped.
Hashem is Infinite. “Infinite” means; without end, everywhere at all times, unchanging, All, Only, etc.
“Finite” means; limited, with ends, not everywhere, formed, changing, etc.
“Worshipped” means; served, prayed to, bowed down to, sacrificed to, served in its particular service…such as an ancient idol that was worshipped by tossing stones at it, etc.
No one, Jew or non Jew is allowed to worship anyone, or anything, other than the One Infinite G-d. To do so is idolatry.
That being clear, there are a number of Jewish sources that allow non Jews to believe in the concept of “Partnership.” Partnership means that Hashem has allocated, or delegated a portion of His power to another entity, such as a star, or a spiritual being, but in NO WAY does any proper Jewish source allow anyone to worship such an entity, whether it is entirely spiritual, or physical, or whatever. Worship is reserved only for the one True G-d, the Infinite One, Hashem.
As to x-ianity, the vast majority of x-ians today worship yashka (the man they say who was crucified) as a portion of god, or as god in the flesh. This is clearly idolatry, and is forbidden. If these x-ians would imagine seeing that man (yashka) walking down the street they would say, “There goes god!”
There are however, some well known branches of x-ianity that call yashka merely a teacher, or a “way shower”, but not a god. According to most Jewish sources those branches of x-ianity are not forbidden to the non Jew.
The fact is that few x-ians understand what they believe in, and only try to conform with what they think they have been told. It is a shame since the vast majority of non Jews who follow those myths are, for the most part, decent people trying to do good in the world.