It doesn't matter if it is your idea or a communal idea; it is still an idea. An icon of Christ is precisely that an icon, an image, an idea of Christ; no one really thinks that's what He really looked like.
God. My idea of God is developing, since I am learning more and more about God
It will continue developing, because God is perfect and we will never know Him as he really is. So, by that approach, we will be worshiping an "idol" (our idea of God) forever.
What assures us that we are worshiping the "true God" is Christ. If we worship Christ, we know that we worship His Father and His Spirit, or simply the true, Triune God.
That's why Christ said that we can come to the Father only thorough Him. he is the only mediator between us (men[kind]) and God the Father.
This is reflected in our Creed "God of God, true God of true God..." wisely chosen words of the Fathers.
Otherwise, "true God" would really become a relativistic concept that would be all inclusive, no only of the Abrahamic God (Jews and Muslims), but of Hindu's Brahman who is described by upanishads in vedas as a singular:
If we admit that anyone who worships a divine Monad (one God) is no different than we are, then Christ himself is an idol and not true God.
Thus, we cannot for the sake of political correctness or "fairness" or cultural sensitivity or any kind of religious tolerance fad assume that all faiths that profess one single God are true faiths or that their God is true God, even though it is not like our God or is even inimical to Him.
-A8