So, you don't have a treasurer or meetings to go over the "business" of the church? You won't have a budgetary meeting to review assets versus debits and discuss the maintenance of the building? You don't essentially function like other 503c non-profit organizations?
The problem is you are defining a business by a community being financially faithful.
Do you have a budget? Do you review your assets and debts? Do you pay your bills? Do you maintain your home?
If so, by your definition, you ate a business.
But in reality, what is a "business"?
"The term business refers to an organization or enterprising entity engaged in commercial, industrial, or professional activities."
If that is the purpose of your church, then yes, your church may very well be a business.
Your error is in defining all churches through the error of your experience with your church.