Of course they look like fools, war has changed very quickly in last few years since their friend Putin fully attacked Ukraine but they’re arrogant enough to not notice. Super-sophisticated ultra-expensive weapons are really nice to have but not that useful against swarms of cheap drones.
Even if war hadn't changed, the US would still fail.
I asked someone after the 9/11 attacks about the possibility of the USA invading Iran and even back then I got a "lol no that's nuts the USA would have its arse handed to it" kind of answer. Better phrased, but basically that.