Any old church? Once again, where did you get that?
>>if taking an unrepentant sinner to them", then that logically requires unanimity between the Churches...<<
No, it doesn't. It's the local assembly they were to take it to. Not some hierarchical man made organization.
>>if the 7 Churches have 7 different ideas of what constitutes a "sin"?<<
They were each addressed independently of the others weren't they.
>>So it's not the mere fact that a hierarchy is involved, but it's the POPE, SPECIFICALLY, with whom you claim to have a beef.<<
I'm sure you would like to split them up for discussion but they are actually one and the same problem.
>>And how, exactly, do you come to the conclusion (aside from personal taste and raw personal opinion) that he's teaching "another Gospel from what the apostles taught"?<<
Many ways but one easy one would be the assumption of Mary and the requirement to believe it.
>>I see the word "Nicolaitans" only twice in the Bible (Revelation 2:6 and 2:15), and it's left undefined in both cases.<<
It's just a matter of searching the Greek.
Greek - Nico, in Greek, is to rule over or conquer, and lait is the common people, the laity. Jesus Himself said it was not to be so with His assembly.
Mark 10:42 Calling them to Himself, Jesus said to them, "You know that those who are recognized as rulers of the Gentiles lord it over them; and their great men exercise authority over them. 43 "But it is not this way among you, but whoever wishes to become great among you shall be your servant;
In Revelation He said He hates it.