“He came to what was his own, and his own people did not accept him. But to all who received him, who believed in his name, he gave power to become children of God, who were born, not of blood or of the will of the flesh or of the will of man, but of God.” (Reference: John 1:11-13 )
If you think about it, the historic Anabaptists were not much different than the early Jewish and Gentile Christians. They felt that they and they alone had seen/been told the truth. And only they, who believed it, had the correct type of faith and worshiped God correctly. The writer of John told the historic Anabaptists that Jesus’ people, his friends and family, did not believe him to be the Messiah. The Jewish officials and leaders did not see Jesus for what he was. Only those who had faith and through that faith were born again saw Jesus correctly and worshiped him as a consequence. This is as true of the early Christians as it was of the historic Anabaptists.
But most people, who creating a new faith system, believe they have the right handle on faith and everyone else is wrong. It is the nature of strong faith. Jesus said that faith built on shaky ground will fail; but faith built on strong ground will survive every storm. Do not judge a faith by the vehemence of the believers, the lengths they will go to, or how loudly or long they proclaim that faith. Judge by whether it is based on the true and authentic God. How do you know that? Well . . . it is a matter of faith.
May you beloved look to and know the true God, and may you be reborn through faith in that God. Selah!