Because most Americans don't care about what's going on in the rest of the world and basically just care about inflation: https://harvardharrispoll.com/wp-content/uploads/2025/12/HHP... (p. 16). Even after everything, a majority of Americans say Trump is doing a better job than Biden, who had worse inflation on his watch (p. 18).
Americans don't care because they don't have to. In Germany, 40-45% of GDP is exports: https://data.worldbank.org/indicator/NE.EXP.GNFS.ZS?location.... In the U.S., it's just 10-11%: https://data.worldbank.org/indicator/NE.EXP.GNFS.ZS?location.... Exports to the EU are just over 1% of GDP. To put that into perspective, if exports evaporated completely, that would wipe out just three years of American GDP-per-capita growth. For Germany, it would wipe out more than two decades of GDP per capita growth.
That not only means that 90% of America's economy is domestic. It means that most people have no exposure to the rest of the world through their workplaces. To the extent they do, that experience is with Canada and Mexico--we have twice as much trade with those countries as with the EU. Canada and Mexico have essentially zero meaningful leverage over the U.S. So even for the relatively few Americans who have some exposure to the rest of the world, most of their exposure is to relationships where America is the utterly dominant party.
>In Germany, 40-45% of GDP is exports . . . In the U.S., it's just 10-11%
The contrast is even more stark than those numbers suggest because while the US is basically self-sufficient in petroleum these days, it imports and exports a lot of crude because US refineries are good at refining heavy crude and sour crude, which other countries struggle to refine. The crude produced in the US is the easy-to-refine non-heavy non-sour stuff so it exports some of that and imports an approximately equal amount of difficult-to-refine stuff because that way US refineries can take advantage of their comparative expertise to make a little money.
The point is that it would be easy for US refineries to switch entirely to US-produced crude as their supply, and if they did that, that 10-11% figure would go down a lot.
The reason people tend to think that international trade is important to the US economy is that during the Cold War, Washington used the ability to trade with the US as a carrot to tempt countries into allying with the US against the USSR. But the main motivation for the US to do that was not to enrich Americans but rather to increase the (long-term) military security of Americans.
Inflation, and immigration/border security. Americans still prefer Republicans to Dems on the latter, even though the specifics of current-year ICE enforcement is unpopular. And Dems have so much trouble just saying "we should deport illegal immigrants that commit other crimes and secure our borders" that Republicans will probably win the next election, too.
Americans don't care because they don't have to. In Germany, 40-45% of GDP is exports: https://data.worldbank.org/indicator/NE.EXP.GNFS.ZS?location.... In the U.S., it's just 10-11%: https://data.worldbank.org/indicator/NE.EXP.GNFS.ZS?location.... Exports to the EU are just over 1% of GDP. To put that into perspective, if exports evaporated completely, that would wipe out just three years of American GDP-per-capita growth. For Germany, it would wipe out more than two decades of GDP per capita growth.
That not only means that 90% of America's economy is domestic. It means that most people have no exposure to the rest of the world through their workplaces. To the extent they do, that experience is with Canada and Mexico--we have twice as much trade with those countries as with the EU. Canada and Mexico have essentially zero meaningful leverage over the U.S. So even for the relatively few Americans who have some exposure to the rest of the world, most of their exposure is to relationships where America is the utterly dominant party.