>Existence of more-or-less successful slave revolts across history doesn't really say much about viability of slavery as an economic institution
That's the point. The Haitian revolution didn't have anything much to do with the economic viability of slavery, but it still happened, and was a major and very definitely causative event in the broader history of the abolition of slavery.
If you think that slavery ended for purely economic reasons, then perhaps you can point to a mainstream historian who advocates this theory. I don't think you are doing your overall argument any favors by tying it to wild revisionist lost causes.
That's the point. The Haitian revolution didn't have anything much to do with the economic viability of slavery, but it still happened, and was a major and very definitely causative event in the broader history of the abolition of slavery.
If you think that slavery ended for purely economic reasons, then perhaps you can point to a mainstream historian who advocates this theory. I don't think you are doing your overall argument any favors by tying it to wild revisionist lost causes.