The Enlightenment didn’t grew out of concerns for inequality, it wasn’t even its big point even though the Enlightenment was a very intellectually diverse movement. Read Kant’s essay on the Enlightenment, it contains the word “equality” exactly zero times.

Also, it is quite ironic to mention the thought of Rousseau as an exemplar of the Enlightenment when he is often put into the camp of Counter-Enlightenment.