You might want to separate out liberalism as an ideology and capitalism as an economic system. Early liberals were often very idealistic and argued that it would be a path toward general emancipation. In practice this meant empowering white landowners, but there was a time when idealism of that kind was commonly a big part of the conversation among liberal thinkers.

They failed, of course. If you want to frame it like a conspiracy, it's of capitalists as a class, not liberalism as an ideology. Not when it was considered radical, at least.

(Again, this is super nitpicky lol, fuck liberalism)