Have you ever had an argument with someone over religion as someone who either follows that religion, a different religion or is non-religious? Did the argument consist of you making points that they couldn't argue against, or argued against using flawed logic? These types of arguments often make others look dumb or wrong to us, but your points and arguing sounds just as inconherent and incorrect/illogical as theirs does to you.
Any sort of belief, in any shap or form, is believed by that person because to them, it works.
When someone believes in God and they go to church and they pray and they preach, following religious texts, they aren't being illogical. To them, God really does exist and everything they are doing is making complete sense.
When someone doesn't believe in God, attempts to use science to argue against certain aspects of religion and has no belief in spiritual beings, they aren't being ignorant or doing anything wrong. To them, God doesn't exist and their lives function without God in the equation, if everything works without religious views in their mind, then their logic is correct to themselves.
Everyone believes what is truly correct and what works, but what that is is unique to each individual. Please consider this information next time you offend someone with different beliefs or consider them less intelligent, it's purely just a difference in how they percieve reality.
..but don't force it down others or offend others for not agreeing.
If this mytake didn't make much sense, think of it like language. Some languages have words that others don't, and most languages aren't similar in their sound at all, but in the end they all accomplish the goal of communicating and they all make sense to their users.