I agree the French Revolution was terrible, taking its humanism too far and focusing on the wrong Enlightenment values (equality rather than liberty). But as I said, the Enlightenment was not one monolithic movement, with both classically liberal and liberal/equality-focused branches. There’s a lot of merit in the former.
Liberty means very little for most of Enlightenment worshippers. Their understanding of liberty is seriously flawed, this is rather libertine anarchy. Average citizen of late European kingdoms was freer than citizen of modern democratic state (or rather pseudo democratic, because if Switzerland would not exist I would say that democracy is a total utopia).