Since there are some 30,000 different Protestant denominations (Google, Wikipedia) I think that the possibility of Protestant "unity" is gone forever. That ship has sailed...a LONG time ago.
Protestants today might not even know where their name came from. They aren't "protesting" anymore...just splintering ever more. That is a shame. It doesn't make folks feel better about their faith. It might even make them apprehensive.
Catholics are as confused about what they believe as any Protestants (which I will grant are confused). Rome is a “unified” mess! How could it not be with its labyrinthine structure? Or it’s rebellious children deciding for themselves which edict, which council, which “Vatican” they will acknowledge—as if they have any warrant from Rome to do so.
Suck it up and obey Francis, all you rebels of Rome!
How about the unity found with in the true Body of Christ (not withstanding church membership), of those who have been “born of the spirit (John 3)”?
Clearly you have not internalized the article.
The point is there are pastors protesting.