But this is obvious. Eventually wars with be fought with machine intelligences. It's inevitable. People who say things like, "We need to think about the implications of AI because these machines will do things we can't understand."

Of course they will. Just like people do things we don't understand. What is the alternative? Technology can't be stopped.

Expressing a wish for caution is pointless because no one will heed that wish, there is almost no rational actor who would not choose to invent machine intelligence knowing that others are pursuing the same technology.

At root, your comment just seems alarmist but not persuasive. How should I change my beliefs even if I concede that yes: machine intelligences will be dangerous and unpredictable.