He starts by saying this:
Too many on the left assume that preferences for more equity and proportionality are so widely shared that support for liberal policies is semi-automatic.
Which is true. If you say something like, as I am wont to do, that I don\’t care much about inequality. It\’s the eradication of absolute poverty that I think more important, you\’ll hear the jaws of lefties thudding to the ground. How can you not care about inequality is the assumption.
Will then says, in conclusion:
The majority of people believe in the principles of equity, proportionality and merit and are prepared to support the needy as long as they don\’t cheat their way to benefits.
That is, after chiding the left for assuming that equity and proportionality are universally supported he makes that assumption himself.