It's no secret Silicon Valley is built on the backs of immigrants. Many of these immigrants are in the top of their field, with extremely specialized skills. They're not displacing Americans; people with those skills simply don't exist in the U.S.

"If you look at the great companies driving the U.S. as an innovation hub, you'll see that a lot of companies were started by immigrants or the child of immigrants, like Apple and Google," he said. Apple was co-founded by Steve Jobs, whose biological father was a Syrian refugee, and Google (now Alphabet) was co-founded by Sergey Brin, who was born in Moscow.

Immigrants put more into the economy than the average American. They're more likely to be employed, and they're more likely to own their own businesses. In short, immigrants—they get the job done.

Though immigrants make up about 13 percent of the U.S. population, they contribute nearly 15 percent of the country's economic output, according to a 2014 report from the Economic Policy Institute. The report contains the institute's latest data on immigration and the U.S. economy."Immigrants have an outsized role in U.S. economic output because they are disproportionately likely to be working and are concentrated among prime working ages," the EPI report says. "Moreover, many immigrants are business owners. In fact, the share of immigrant workers who own small businesses is slightly higher than the comparable share among U.S.-born workers."