In a technical sense I totally agree with you. But in a practical way, it was christians that built the country for the most part, christianity has heavily influenced our society. I'm a non-believer, I don't believe a talking snake convinced a rib woman to eat a cursed piece of fruit. Some people do. That's the beauty of our country, everyone is welcome and you're free to find liberty and worship however you want so long as you're not harming others. But to deny christianity hasn't played a major role in shaping out society would be revisionist history.