The Politics of Responsibility Thanks for this platitude Benkei.
Positive freedom (or liberty) is such a leftist joke, I am not sure how people can morally defend this incoherent twaddle. The conservative Roger Scruton also fell for this. Inequality is not a problem, and even if it is, capitalism has made the world more equal according to the HDI, which actually include your silly 'positive liberty' measurement, contributed by Amartya Sen en Nussbaum. It is basically entitlement to other's resources, but packed in intellectual nipple massaging gestures. It is greed intellectualised.
Anyway, you have not addressed Peterson's point regarding 'taking responsibility' (or 'growing up'). Which means, that if you have any moral responsibility at all, it is to improve yourself (whatever that may mean) and take charge of your own life and its direct surroundings -- hence his remark of 'cleaning thy room'. It is basically Aristotelian Viritue ethics in modern clothes. If you want to change the world, start by changing yourself. Reflect on your own characteristics.
I am not even a fan of Peterson, I just have watched some videos.
Thank God that intellectuals have little to no power.