Is there to be only one Church or many? According to Scripture, Christ wanted us to be one (John 17:22-23). We are all as a Church to be of one mind and to think the same (Philippians 2:2; Romans 15:5). There is only to be one "faith" (Ephesians 4:3-6), not many. For the Church is Christ's Body and Christ only had one Body, not many. Also, since the Church is Christ's Bride (Ephesians 5:29), can Christ be married to more than one wife (essentially a spiritual form of the the sin of polygamy)? No, Christ can only have one wife (i.e., one Church, not many).
There is, in fact, only “one church” that follows Christ, but it is made up of those congregations that are not putting pedophiles, adulterers, etc. as their leaders and who are glorifying God in their hearts, minds, and actions.