Which happened because they killed all the white people. Haiti is in our sphere and we would have cracked down more if the slaughter didn’t happen. The other powers did not support Haiti either because of it. It was a self-inflicted wound and France was getting payback for the murders also, since most were French.
There are several books about this if you check. The Haitians sealed their fate on day one.
Is it just to condemn brutally exploited slaves for bitterness and reprisals against those who exploited them? I think not. Slavery under the French in Haiti was notorious for its extreme cruelty and outsize profits, with a high rate of mortality among the slaves. The indemnity set in the 1825 treaty between France and Haiti was based not on lives lost but on property values, including the value of the slaves themselves.
Napoleon’s inability to reconquer Haiti led to his decision to sell the Louisiana territory to the United States, so the US benefited. But horror stories of the whites in Haiti being massacred made the slaveholders in the US afraid that the same thing could happen to them if they didn’t maintain control over the black population. Of course few slaveholders wanted to end slavery anyway.
Haiti got its independence before the Monroe doctrine.
At the point in time, the USA was still poor and unable to project power much internationally.
The USA also had half of its states as slave-states who would NOT look kindly on a state founded by freed slaves.
The USA was in no position to aid and would not have helped before the 1850s