Great, the $7,000 Mac Pro is manufactured in the US. Buy it.
The reason only the Mac Pro is Made in US is because that's the only product that has the cost buffer to accommodate manufacturing in US. So if you don't want a Mac Pro, are you willing to pay twice of what you would pay now for it?
While I agree with your sentiment, it's only assembled in the US and carries a Product of Thailand label.
For it to be labeled Made in USA the FTC requires:
Marketers and manufacturers that promote their products as Made in USA must meet the “all or virtually all” standard.