Sometimes it isn’t necessary to see it.
A story, a headline or just knowing what evil people they are suffices.
Do you think God just turns a blind eye to evil, but knows it anyway? God sees the evil because it’s necessary. That said, I don’t think we are capable of looking at it in the same way. We get tired of seeing it, we want to pretend it doesn’t exist, to delocalize it since it’s far away. But seeing all things, God doesn’t have that luxury.