I see no problem with the OP or the opinions there. Imo, the 'Protestant' church is quite fractured, and the author has a point, especially in drawing attention to the dis-unity of the non-denom churches. Each seem to be an entity unto themselves, or (if affiliated) only loosely for the purposes of fellowship or sharing of resources.
Friend, there is no "protestant" denomination.... there are several (the LCMS is just ONE of those who claim such). And there is no "apostolic" denomination - there are several (the Catholic Church is just ONE of the ones who claim such). Lumping things as you do would be similar to saying there is the Ford Motor Company and then another - All Others (there are NOT two car companies: "The Ford Motor Company" and "The All Other Car Company." In reality, there are hundreds of car companies of which Ford is just one.)
The RC denomination certainly has a sense of "unity" with itself (officially, formally, currently, AS A DENOMINATION)... it itself currently IS in agreement with it itself in those teachings that it itself currently indicates is good to agree upon. But it agrees in this way ONLY and EXCLUSIVELY with it itself alone. One could say at least as much for any other denomination you might name... the LDS, the UCC, the UMC, the UPC, the EOC, the URC, the LCMS, consider any single denomiantion and you'll find such agrees with it itself - at least in the sense of the RCC: officially, formally, currently, institutionally/denomination (not members) and in those things that it itself currently indicates is good to agree upon.
The RC Denomination also is "united" with it itself institutionally. The RCC is the RCC and is united with one - ITSELF. But it is united with no other denomination on the planet (don't let Catholics confuse you with "rites" - the varies "rites" are all in the same denomination).
This is why when I asked our Catholic brother to list for us just 5 churches with which the CC is in "unity" (in terms of doctrines or institution) - he had to evade and ignore the question (as he has several times). Because it is in unity with NONE in EITHER sense (and he knows it, we all do). Now, Imaginary, I agree with you: there is a long list of denominations (including a lot of Protestant ones) that are just as divided as the CC denomination is in these senses (I'm NOT saying the UCC has more unity in teaching or practice or institution than the CC one is!) but there is no other denomination worse... there is NO denomination on the planet or in all history that has WORSE than a unity with NONE (the unity the Catholic Denomination has), indeed, it is IMPOSSIBLE to have less unity than the Catholic Denomination has in terms of teaching, practice and institution.
I think the "call" of the RCC at Vatican 2 has virtue, it's just if the RCC cares AT ALL about such, let it start with itself: there is no denomination on the planet with less unity in these senses than the RC Denomination. "Physican, heal thyself." The CC Denomination rebuking others for being as bad as itself (which some are) reminds me of Jesus' "log/speck" point.... pot calling kettle black.
My half cent
Pax Christi
- Josiah