What is idolatry?

Peace be upon the Grand Master Shlita.
If God is omnipotent, then He is capable of developing emotions (or qualities in Kabbalah) and perhaps even incarnating as a human being. Moreover, if one claims that God cannot incarnate as a human being, this is heresy, a heresy against the power of God (and this is not a logical contradiction that has no meaning). So then God can split into several deities with a form (as the Hindus believe), certainly into great beings like the various pagan idols. In short, they determined that the Creator of the world has a form and a form and has a different name.
Although there it is argued that pagans believe in idols that fight and are equal to one another, the deity cannot (or rather has no reason to) fight itself, but with regard to the Christian or Hindu faith and some of the pagan beliefs, this sounds more plausible. In fact, it turns out that there is no such thing as idolatry. So what is it?
And I justified myself by saying that this was a different way of relating to God and demanding commands from Him that did not occur to Him. So why didn’t the jurists put Islam in the category of idolatry?