Excellent rebuttal. I'm not good at that sort of thing, as the leftist argument that historically conceived, negative freedoms are not freedoms at all, and massive state regulating and structuring of every private moment is the only way to achieve "real" freedoms always just sets off my 1984-doublespeak button, and I turn as twitchy and incoherent as if someone punched me in the face and told me that by doing so they were expressing friendship.
It's good to see that someone else can remain calm and point out crisply just details of how the argument is defective.
Excellent analysis! Couldn't have said it better myself. The point that I particularly love in the "relative pay is what's important" is that the only solution to the problem is ABSOLUTE equality through redistribution. Unless everyone makes exactly the same amount, there will always be "winners" and "losers" in the greedy, materialistic vision of the left.