I don't say they wanted to abolish it. They did want a geopolitical space that did not encourage it.
Again, you seem to equate "capitalism" with the acquisition of wealth. Acquiring wealth is certainly a goal of capitalists, but not everyone who seeks to acquire wealth is, as I see it, a 'capitalist'. Just because bondage slavery isn't 'socialism' doesn't mean it must be capitalism.
Capitalism includes 'wage slavery': paying people to be used as machines (in lieu of being directly responsible for their 'maintenance', as in bondage slavery).
The two forms of exploitation lead to very different societal cultures. That is the reason the Civil War happened (in my understanding of that history).