Let him be pope.
The pope talks a lot of nonsense about irregular things you can not prove to his his followers who believe everything he talks.
That is exactly what Trump does as well.
But there is one big difference: The pope has no power at all. It is completely irrelevant for the world politics who it will be
I know what you mean, because the Pope may not have any military or economic power, but he exerts considerable influence on global political developments - especially on a moral, religious and diplomatic level.
Examples:
Pope John Paul II played an important role in the collapse of communism in Eastern Europe.
Pope Francis has campaigned intensively for climate protection (encyclical Laudato si’) and for refugees.
The Vatican is often seen as a neutral mediator in conflicts, as it does not primarily pursue economic or power-political interests. This can be diplomatically relevant. 
Agree on that. Still the relevance compared to the power of the USA is marginal…
