Comment by tshaddox

> Does the US currently allow immigrants who are likely to become a "public charge"?

Providing evidence that the applicant is unlikely to become a public charge is an important part of most visa and green card applications. Form I-864 is an Affidavit of Support where a sponsor (usually the family member or employer sponsoring the visa or green card) promises to financially support the applicant.

If the U.S. really does have a problem with lots of visa and green card holders becoming public charges, it's not because their application process doesn't directly address the issue.