The comparison (“like them”) is not about idols gaining life or power. It is about people taking on the idols’ basic “non-functioning” quality in some sense—becoming unresponsive, dulled, or emptied in life shaped by dependence on a lifeless object.

Where interpretation differs (only where needed)

What “like them” means. Some read it mainly as inner moral and spiritual dullness: idol-trusters become less able to perceive truth and respond rightly. Others read it more broadly as a description of social and personal collapse: trusting idols leads to a life that cannot truly help, protect, or flourish, so the people’s lives become as ineffective as the idols.

What kind of statement “will be” is. Some take it as a straightforward prediction about consequences built into reality: trusting lifeless things produces lifelessness. Others hear it as a warning statement with the force of a pronouncement: the psalmist is not only observing what happens but declaring what will happen to those who give themselves to idols.

How broad “everyone” is. Some take “everyone” as universal in principle (any person, in any setting, who trusts idols). Others take it as rhetorically broad but aimed at those in view in this psalm’s world—people tempted to depend on crafted gods.

Why the disagreement exists The verse is short and uses poetic compression. It does not specify which aspect of idol “lifelessness” is in view (inner perception, outward behavior, communal health, or all of these). Also, Hebrew future forms can function as prediction or as a strong warning-like declaration, and the word translated “everyone” (everyone) can be universal in scope or generalized within a particular setting.

What this passage clearly contributes The text explicitly ties a person’s outcome to their object of trust: makers and trusters “will be like” the idols “in them” (the idols). It reinforces the psalm’s broader contrast between the living God and lifeless substitutes: devotion and dependence do not leave people unchanged; they reshape people into the character of what they cling to (here, into the unresponsive likeness of idols).