Coffee is a staple in the American economy, but coffee-shop coffee items are a luxury, albeit one that is bought by a fair number of Americans. Luxuries, especially imported luxuries, should expect to be impacted by tariffs.
(And I’m not immune: as a “chajin” I’ve been drinking matcha for four decades, since long before it became cool. I fully expect to have to pony up more yen for the green stuff.)
As long as Starbucks and its overpriced burnt swill they call coffee are still in business, coffee is not too expensive. ;~(.