Mexico is far more than tourism.
Under the threat of Trump protectionism, Mexico is already diversifying it economy, and turning to China.
Chinese auto company JAC Motors announced this year will invest it $212 million in an existing car plant in Hidalgo, Mexico, to build SUVs.
Chinese telecommunications company Huawei is expanding its presence in Mexico.
Mexico is contemplating using the "China card" against Trump.
The U.S.  does not want a major Chinese presence in Mexico for economic and security reasons.
Trump's bullying threat of big tariffs would be met with  some major consequences.
Predicted outcome, Trump backs down and issues his default statement: "Gee, I didn't know it would be this difficult."