That is a very selective read. Here is the full paragraph, which you carefully quoted:
“The ban applies only to those seeking legal residency. It therefore misses the mark because, as Jessica Vaughan of the Center for Immigration Studies explains, ‘there will be only a modest impact since 60% of green card applicants are already here (80% of employment category is already here).’ In other words, the ban applies to the only group of foreign nationals who are not coming to the United States specifically to take a job, while making exemptions for H1B, H2A, and H2B visas. Trumps immigration proclamation actually exempts some of the largest sources of immigration and specifically economic categories which negatively affect jobs and wages for American workers.”
The ban, in fact, does not ban “most” immigration as you said incorrectly. The exempted visas — including H1B, H2A, and H2B — are large sources of legal and illegal immigration. Tens of thousands of these workers come legally, overstay their visas, and transform into illegals overnight. Trump said the purpose of the suspension was to protect jobs, yet he exempted visas for immigrants coming to the US specifically to take jobs. That should not be so difficult for you to understand.
Also, you did not read carefully about the EB-5 visa program. Unless you think selling citizenship, and mostly to Chinese investors, is as American as apple pie? In which case, you are not very American at all.
From USCIS, which oversees the EB-5 program: “In May 2017, USCIS conducted an internal fraud assessment and identified 19 cases of confirmed national security concerns. Specifically, the national security concerns identified related to terrorism, espionage, information and technology transfer, or a combination of these factors.” https://www.uscis.gov/tools/resources-congress/testimonies-and-speeches/hearing-citizenship-sale-oversight-eb-5-investor-visa-program-senate-committee-judiciary-june-19-2018-uscis-director-l-francis-cissna