Worshiping the actions of imaginary beings.

Many people worship ideas - particularly those that worship a god. Christians, for example, have no choice in the matter. They don't know what God is, so they must worship the being's perceived actions. Is the idea of God's (or Allah's, Yahweh's, etc.) actions based on an actual, existing being's behavior? How can it be? The idea of God is known to have originated from scripture (within the context of our modern society), and scripture has been shown to be very inaccurate:

-bird blood curing STDs,
-world being 6,000 years old
-sin causing disease
-world-wide floods
-a flat earth  .
-an earth with edges
-biological creationism

None of us were around at the time God supposedly "created" it all, and there is no evidence which leads us to believe that the universe was created (unless we have underlying motives to connect dots that shouldn't be connected). Ignorance does not infer anything other than ignorance. Creation, like all things, should be proven before being accepted as fact. This is why being an atheist is the most respectable stance to take. Atheists demand evidence, or at least follow those that demand evidence (scientists, etc.) The idea of blindly following someone out of fear of hellfire is a common theme in many religions. An atheist has the ability to be skeptical of all ideas - obviously not all atheists choose to utilize it. And obviously atheists do not trust in science out of fear, but out of its observed usefulness. Christians can't be skeptical of certain ideas, it is frowned upon (to put it mildly).

Objectivity is limited to our imagination. Regardless if a god exists or not, that doesn't remove the fact that believers worship an idea - which is idolatry. To make it worse, any being that cannot be sensed (taste, touch, sight, sound, and smell) cannot be worshiped (even as an idea). How can the being itself be worshiped if it is not known to even exist? Believers in a god worship the perceived actions of a being that is void of sensory output - at least for humans - which is merely an idea in itself. Idolatry cannot be escaped for a believer. An idea =/= the being itself. Believers worship ideas that they read about in books, or are told about by other humans. At the end of the day - Christians, Muslims, Jews, and other similar believers - worship ideas that come from books. This is pure idolatry in a philosophical sense.

Believers will argue that atheists worship themselves or science. This however isn't true because there is a difference between trust and worship. Atheists trust in science, and themselves (as most people do). Unlike a Christian, an atheist is able to trust and fully embrace science. Science for a Christian is viewed as a threat to certain ideas that they hold to be valuable - valuable merely for the sake of self-preservation (i.e. fear of hell). But, even if atheists did worship themselves (atheists are no more egomaniacal than believers) or science, that doesn't make us hypocrites. Idolatry is not a sin for atheists, it's just typically viewed as being stupid in most cases (like with worshiping celebrities, sports teams, etc.). The point here is that worshiping ideas blinds a person to the reality that an idea is just an idea. Our ideas can cause us to miss the forest full of trees.