The Issue of Idolatry in Abrahamic Religions

[Leonardo17]

There isn't a whole, or a partial, science to crystals.  You're right that they're not idols, they're often employed as fetishes and totems...but here's the question I have-  

Why would it be bad if you -did- worship them?  So god is a jealous god.  Is he going to hurt you if you want to see other people?  As for whether or not you can grab a magic book and then start harassing passersby on a street corner...yeah, you can do that, it happens with some regularity.

The way I see it:
 
If you don’t believe in God as a cosmic person that’s fine.
 
If you don’t believe in an Original Cause or Supreme / Ultimate Reality that’s also fine.
 
If you have idols, fetishes or totems within this three dimensional reality even that doesn’t mean you are the worst possible being in this three dimensional existence.
 
But if you believe in a Higher Reality and if you misplace your faith in this higher reality, you may end up (for instance) murdering other people in the name of that “Higher Reality” and therefore I think it’s rather normal for any God that is potentially real to try to warn people on such issues