Netanyahu is not religious. He is, as the parent says, secular. If my cat quacked he's still not a duck.

There is "religion" in the broader sense which can be any set of beliefs but Netanyahu is as secular and logical as can be. He may be overly logical in the sense of advancing his personal agenda (avoiding standing trial) over the interests of his country but he's still very different than the religious crazies in Tehran where logic plays no role and g-d is everything.