Completely unregulated free markets lead to extremes like slavery and leaded toys.

Regulatory practices can be abused or coopted (leading to regulatory capture) but that shouldn't mean we shouldn't keep pushing.

Would you frequent a completely unmoderated online forum? We all know how chatroulette turned out...

Every time we say "in theory a competitive market could achieve the same goals," we find that the entrepeneurs don't have the same goals. The problem isn't the mechanism of capitalism, it's the naive belief that consumer goals and seller goals are aligned.

Actually the problem is more that the theoretical concept of a competitive market bears about as much resemblance to any real consumer goods market as a homogenous sphere of bone, meat and skin in a frictionless vacuum bears to a cow.

Agreed.