Rousseau certainly had an interesting relationship to the rise of Liberalism. And I am often unsure of whether to count him among the developers or enemies of the movement. I can read him both ways.
Your second point is I think correct on part of the problem but I think there is a second deeper issue which goes beyond dark money per se and implicates everyone. That is the fact that family and community are support structures which each of us rely on during hard times. If you come from a wealthy family and you really screw up repeatedly you will still probably do better than if you come from a poor family and do everything perfectly. But the family support structures have been under constant and sustained attacks on a number of means on the idea that if we undermine the family we will, for example, liberate women from inequality (in truth, it only increases gender inequality because motherhood has heavier burdens as single motherhood). Undermining the family, however, creates larger markets for a lot of things. A larger number of smaller households consume more. So business steps in to fill the role, as does the state. Moreover if you liberate business from the state and from community, then the first thing it will attack is the family and the reproductive order because it isn't very efficient for employees to have and raise kids (better to import kids after they grow up).
So I actually see the sexual liberalism of the progressive left and the business liberalism of the Koch brothers as mutually reinforcing, as politically heretical as that might be in the context of US political discussions.
Your second point is I think correct on part of the problem but I think there is a second deeper issue which goes beyond dark money per se and implicates everyone. That is the fact that family and community are support structures which each of us rely on during hard times. If you come from a wealthy family and you really screw up repeatedly you will still probably do better than if you come from a poor family and do everything perfectly. But the family support structures have been under constant and sustained attacks on a number of means on the idea that if we undermine the family we will, for example, liberate women from inequality (in truth, it only increases gender inequality because motherhood has heavier burdens as single motherhood). Undermining the family, however, creates larger markets for a lot of things. A larger number of smaller households consume more. So business steps in to fill the role, as does the state. Moreover if you liberate business from the state and from community, then the first thing it will attack is the family and the reproductive order because it isn't very efficient for employees to have and raise kids (better to import kids after they grow up).
So I actually see the sexual liberalism of the progressive left and the business liberalism of the Koch brothers as mutually reinforcing, as politically heretical as that might be in the context of US political discussions.