Honestly I suspect that's just a momentary bout of mass irrationality (to put it politely). Both countries are completely safe, de-facto NATO members. Russia has no stated or implied interest in invading either. More importantly, Russia has no capacity to do so - they can barely push 50 km into Ukraine as it is.
America, otoh, has a lot to gain in extra weapons sales (remember NATO comes with a 2% of GDP spending target).