I simply was unaware that anyone was running as a replacement, a competitor -if you will- for God.
Now, some in position of power may think that, until they are face to face with their Creator.
I don't have personal knowledge, but I strongly suspect the He is not really worried about mortal pretenders.
I never said God was concerned about god wannabes. He’s not. He laughs at their pretension. Yet he is concerned about how his believers behave themselves. He warns us to steer clear of any person or practice that sets itself up against God, or offers itself as a substitute for God. He designates such hubris as idolatry, and has told us unambiguously to avoid it, to flee from it. His concern is for us, not for the idol. He loves us, and thus wants us to direct our faith exclusively to him, because only then can we receive his blessing and help, which we now so desperately need.