Was hat Bergoglio mit dem kath. Glauben oder überhaupt mit dem Papsttum zu tun? Wie kommt es, dass er so weit gehen kann? Wie lange müssen ehrlich gläubige sich das alles noch gefallen lassen? Wir müssen viel beten, um von diesem Verführer endlich befreit zu werden.

Buddhism may accept Jesus as a 'prophet'.
Judaism already has done so.
Muslim already do as well...
I need more information about this 4th group to find their doctrine and learn.
As for doctrine outside of this one holy person... I can say that nuances make a huge difference and history has not provided soluble coincident terms for joint acceptance of these differences that I have seen.
If the goal is to make one religion that suits all, they may find that most will dislike dilution of doctrines. And some may take offense to any dilution.
To me:
- Chocolate is awesome - Vanilla is quite tasty - Strawberry is nasty - Coffee is the bomb Likely I will not like the grey result of their mix.