This isn’t hard, U.S. has often had a requirement that immigrants not come in and be a burden on society.
Via Daily Caller:
The Trump administration will require many future immigrant applicants to prove they can afford health insurance, marking the White House’s latest move to restrict immigration from those who could become a financial burden on the government.
President Donald Trump, invoking his executive authority, issued a proclamation Friday evening that will prohibit the entry of immigrants applying for visas unless they prove they can obtain health insurance within 30 days of entering the U.S. or otherwise indicate they can afford their own medical care.