European here: wasn't planning to travel there anyhow but am now def boycotting US businesses/products as far as possible, especially the really shitty ones.
Ex: no Coca Cola for me from here on out, currently looking up which soft drinks/lemonades I can still enjoy.
Let the GDP/bottomline plummet aaaaalll the way to hell. They (= shitty businesses, maga's AND the "undecided voters") need to feel this, it has to hurt or they wont learn.