The title is a bit overly-polarizing; Prof. Matloff has been an outspoken critic of H-1Bs for quite some time, and only mentions the president once in the article. The actual EO isn't even out yet.
This issue has nothing to do with joblessness in the Midwest (and is certainly not of the same scale), that is mostly due to the departure of big manufacturing companies to foreign countries. This is what Trump was talking about: blaming immigrants and corporations for the loss of low-skilled jobs. No one in America cares that overpaid software developers loose their jobs to H1B workers...