Lots of couples live together without benefit of marriage. Go for it. Just know that it may cost you in income taxes, in estate taxes, in property rights, in social security benefits. But, hey, if you're fine with only being married in the eyes of your church, skip the government stuff.
So then a guy who never gets married and never decides to take a wife either or any spouse doesn't get the same deal from the US Federal Government.
Why? Sounds like he is not getting equal treatment from the government.