I do not think Elon likes the idea - when someone likes something, their response is immediate.

War is inevitable, so you might as well try to find the positive in it...

Why is AI inevitable? It is no longer in human control? Did they let it loose into the primordial digital slime of the internet, to evolve on its own? Or did they nurture it in a controlled environment, and teach it human emotion and process?

If a 'good' and 'bad' AI got to war - what will be the battlefield?

Will it be digital, or, do they have control of weapons in the real world? Can they control the mechanisms affecting the weather?

Or will they just force their narrative controlled human slaves to fight it out?

Base programming is everything to a machine.