I agree that we think we understand evil and suffering and that this logically excludes an all powerful and loving God. What I am saying is that our understanding cannot always be relied upon. And that there is at least the possibility that the creator of the universe knows better than we do.
Just because we think we understand something doesn’t mean we really understand it. Take the example time. We think we know that time progresses like an endless flow, that what’s been has been and what will be is not yet. And yet scientists have argued that our common understanding of time is a kind of illusion and the reality is quite different.
https://www.nature.com/articles/d41586-018-04558-7
If we can be mistaken in our perception and understanding of something as close to us as our experience of time, then what else do we perceive differently? The Bible says we cannot always understand why God acts as he does, and we have no right to question his justice.