i mean, he's using his own "theory of mind"

i (trump) am the most important here, as the based god-emperor

if i fall, everything will go down the crapper

ergo, if i kill the heads of other nations i dislike, their regimes will die!

their own propaganda plays against rightoids

He must, without a doubt, believe that if a certain head of state were to be decapitated (literally, because why the fuck not at this point lol), that nation would collapse. Man, are things really, really that fragile, then? I'm familiar with Chairman Mao's "reactionaries are paper tigers" quote, but holy-moly, it's laughable how literal things are.

Yes

Doubt they think it has military value. But it's good PR.