I don’t think you can take “percentage of GDP” as an indication that the US is doing less. It could be doing the same amount while the GDP grew tremendously in other areas, for example software.
And if you look at the absolute contribution in dollars, manufacturing has gone up 1.76 times between 2005 and today: https://fred.stlouisfed.org/series/USMANNQGSP
This is roughly 2.9% a year over 20 years, so slightly ahead of inflation over the period.
To me this points to a story where manufacturing grew slightly but the other parts of the economy grew a lot more. Not exactly a bear case on manufacturing, but not a tremendously exciting one either.
When politicians talk about the decline in manufacturing what they mean is jobs. I work in American manufacturing and there are tons of amazing projects happening but the decline in jobs is real. Especially low skilled jobs, This trend will only continue and I doubt any politician, regardless of thier background, can change that. And I’m not sure it’s a bad thing as it means manufacturing productivity is increasing
The main reason it’s so political is the drop in number of jobs has been huge, and too fast for many to adjust. Automation has come fast.
“ Manufacturing employment declined from 17.3 million in January 2000 to a low of 11.5 million in December 2009, a drop of 33% over the decade. Compared to the peak of 19.5 million in 1979, manufacturing employment had declined approximately 41% by 2009.”
https://blog.uwsp.edu/cps/2025/01/29/u-s-manufacturing-emplo...
Interesting to think about. Share of GDP staying stable but number of jobs fell by around half.