Seven Churches. In Asia. Not Rome.
But part of the Church the Catholics would claim as Roman Catholic. Rot starts at the head . The presence of absence of writing from 250 AD proves nothing. The Catholic Church would hardly preserve writings that disagreed with them. You are creating straw man by your demand for manuscripts from 250 AD. The point is the Catholic Church has many apostate and heretical teachings called out time after time not when we have a document calling them out. Even today if the Catholic Church would repent of its heresy it would be welcomed by Christians everywhere
Is Christs repudiation of Peters error enough for you? Right after the verse that your sect interprets as Christ appointing Peter as the first pope, Christ turns to Peter and says get the behind me Satan! Is that close enough to the founding of your church?
Seven Churches. In Asia. Not Rome.
It sounds as if you are indicating that these churches had no overriding authority. No pope for example.
I appreciate that clarification.