People can point to things like Trump bailing on the dignified transfer of four deceased troops for a weekend of golfing as sign that Trump doesn't care, but I think that would be missing the point with Trump's admirers: if Trump doesn't care, they don't. The screencap above is from Fox News, where Jesse Watters is extolling who Trump is." He doesn't give a fuck."
Trump, with respects to tariffs, is described as being at the "peak of not giving a fuck." That's actually coming from the White House. Also from the White House, this self-congratulation:
But is not giving a fuck what you actually want from the leader of your country? Like, if old Darcy down at the diner stops giving a fuck and pours coffee in someone's lap, she's liable to get fired. If Sean at the SuperMart goes off and rams a row of carts into someone's 4X4, he's out. And here's Donny, hero of the guys who always wanted to say "Take this job and shove it!" who ends a busy week fucking with the world economy with doing whatever he feels like.