Derb – Yes, it may be so. But, off the top of my head:

You’re basically saying you want two — or more — Catholic Churches. It’s not like the multiple Popes can/could recognize the authority of the other Popes. Semantically, never mind theologically, this means you want the Church(es) to be less Catholic.

Only one Pope is going to get to keep the Vatican (timeshares are out of the question), which is a pretty useful marketing tool. Avignon is nice, but doesn’t quite have the same caché.

We still have something of what you’re talking about with the East-West schism, no?

Also, there’s a place for Christians who don’t think Catholicism answers their specific complaints and desires, it’s called Protestantism and its house has many rooms.

I know you’re keen on the 12th century — or was it the 13th? — but I think that ship has sailed.

This is an odd thing for a Jew and Protestant — particularly ones with our sensibilities — to be arguing about.