

This, but also there is massive competition for getting Trumps favor among his minions. A public statement like this pleases Trump, and so Vance gets to be a bit closer to daddy. Trump loves this type of competition among his underlings, and so all of them attempt to outcompete each other in stupidity.
I don’t want to talk ethics, but as a rule of thumb, winning a war is easier if you take out strategic targets than if you target civilians. Targeting civilians is what you do if your weapons aren’t precise enough to target tanks/planes etc.