“Everybody ever is infallible in their believing!” proclaims The Blah Blah Synod™ No. They are not.
Matthew 16 (exclusively about Peter) and Matthew 18 (about believers) indicate that Peter and believers have the same capacity to believe but only Peter has infallibility. When those in Matthew 18 have a disagreement they are to go to Peter. That’s how our Lord set up His Family of Faith. Yep. To reject the very founding of the Church on Peter is to reject the Church, to reject Christ, so set up not just a different or even another church, it is to set up an anti-Christ, anti-church.
I will not comply.