Left-libertarians rightly argue, and the historical evidence amply supports, two related claims: 1) capitalists are not the primary beneficiaries of freed markets, society as a whole is and 2) capitalists are all in favor of using the state to advance their own interests in the face of free market results they do not like.
My own conviction is that the underlying market processes carry more weight than the distorting effects of the state along more margins than the left-libertarians believe.
One reason I leap to the defense of the Walmarts of the world is because they have done a great deal of good for the least well-off among us precisely due to the underlying market forces that critics would like to remove. In “playing defense” this way, I might look like a vulgar libertarian, but the larger strategic goal is to defend not the existing imperfect market processes but rather the freed market processes against those who would eliminate both.
To the degree that proposals to move us away from freed markets are based on a misreading of these data, defending the market forces at work in a mixed economy is not vulgar libertarianism, but an attempt to save us from even further statism and corporatism.
.. we should more carefully examine what parts of the status quo are driven by the underlying market forces and which by the state. Charges of vulgar libertarianism against legitimate arguments for the robustness of markets will do more harm than good.