Oh so that makes it okay that they rounded up all the white polish etc minority on the island

Famously the one group that was spared.

Only to then be fucked by France and the United States for the next Century afterwards.

The US and France had fucked over Saint Domingue long before Dessalines was overthrown. It was Dessalines who was forced to sign the treaty which indebted the entire nation as price for their freedom. It came with support from slaveholders like Jefferson who correctly, saw the Haitian Revolution as an existential threat to their way of life.

The point is to highlight the concept of Critical Support. Dessalines isn’t someone to idolize like Toussant, he was a ruthless thug. But Napoleon rejected the alliance that Toussant offered. So faced with the choice of re-enslavement under Napoleon and Rochambeau, I would’ve taken Dessalines any day.