I don't really see how the Pope's opinion is relevant for anyone that isn't a Catholic. He's not a divine representative to me.
I'm also fascinated, by all the pictures that come up when you google "Vatican wall". Hmmm...
I'm not Catholic, but I listen when the Pope speaks. That station is almost always filled with brilliant men who have dedicated their life to the ideals of compassion, kindness, and goodness.
You don't have to see him as a divine representative to recognize that he's a spiritual authority. I don't believe he's right all of the time (neither do Catholics). I also don't believe I'm bound to think the way he thinks.
I do believe that when he and I disagree, there's more than a good chance I'm wrong and he's right. So I take some time to consider what he's said.
---
I'm surprised the Pope spoke about Donald Trump specifically. Is that confirmed, or was he just talking generally, and someone decided it was about Mr. Trump?