I hear you. That’s what I meant in the last part of my post. I was an advisor with CF back when we came out with the statement of faith. I was part of the advisory team that developed it. There was a lot of thought put into it and there was a lot of input from the membership then. CF was a bit different then and was very busy. We even had forums for non Trinitarian churches like the JWs, Mormons, and Christadelphians. Gnostics could even post in that forum. Now we have a watered down version of what it was. With that said, the statement of faith was not intended to define who was a Christian and who was not but merely to determine where they could post. Now is used to determine who can actually post in the Christian sections of the forum.
As far the doctrinal differences, I like to use 2 Timothy to make my point.
“But evil people and impostors will proceed from bad to worse, deceiving and being deceived. You, however, continue in the things you have learned and become convinced of, knowing from whom you have learned them, and that from childhood you have known the sacred writings which are able to give you the wisdom that leads to salvation through faith which is in Christ Jesus. All Scripture is inspired by God and beneficial for teaching, for rebuke, for correction, for training in righteousness; so that the man or woman of God may be fully capable, equipped for every good work.”
2 Timothy 3:13-17 NASB2020
All Scripture is inspired by God and beneficial for teaching, for rebuke, for correction, for training in righteousness
bible.com
Evil and impostors will deceive. There are two types of people some evil and some impostors. Some of these are deceiving and some have been deceived. The evil ones we can just rebuke in Jesus name and move on but the ones that have been deceived is a group that we can teach and correct. I remember many Mormons and JWs back then that converted to Trinitarian denominations after realizing the foley of their doctrine.
The basics of the gospel, like Christ dying in the cross for our sins, is based on sound scripture teaching which Paul and the apostles taught. 2 Timothy was written in the mid to late 60’s while Paul was in prison in Rome so he was privy to the arguments against Christianity by groups like the gnostics, Roman philosophers, and other secular philosophies of the time, hence he was warning Timothy and the church to be on the look out. So we are still looking for the same things these days and groups like the Mormons and JWs fit the bill.
Other than the obvious though some denominations judge others that believe in the Jesus of the gospels by what I call non salvific doctrines. Doctrines that have no effect on our salvation. Doctrines like universalism and soul sleep for example do not question the Jesus of the gospel but some will question their Christianity and in CF can only be posted in the controversial theology forum. I believe that salvation is by grace through faith in Christ so as long as they can define the Christ of the gospel then I am not going to question their Christianity. So the body of Christ in my opinion are those Christians that believe in the Jesus of the gospel.
Sorry for the winded post.