This is happening in the United States’ backyard, and the US government is doing nothing to intervene other than complain about migrants.
Unless the Haitian government is willing to give significant control of the country over to the US, or pay for US weapons and mercinaries like Israel does theres not a lot they can reasonably do beyond providing financial aid and humanitarian support, as they have been. What else would you have them do, invade Haiti?
The the infamous Weimar Republic mark was only one 4.2 trillionth of a dollar. This is a quadrillion x quadrillion dollars.