The world is failing the Haitian people, and this dispute is yet another example of it. The Dominican government's unilateral decision to close the border essentially traps Haitians — who are already facing extreme levels of violence and struggling to feed their families and access clean water and health care — in a move to politically capitalize on anti-Haitian sentiments ahead of next year's election.
The border closure is a necessary measure that must remain in effect while the Haitian government, which has problems controlling its territory, fails to prevent the building of this provocative canal to divert water from the Massacre River. Talks to address this ongoing dispute are underway, and hopefully, Santo Domingo will soon come to good terms with Port-au-Prince.
There is a 50% chance that Haiti will become a World Bank upper middle-income country by January 2050, according to the Metaculus prediction community.