Maybe he is. If that's the case, let's "steelman" his position and do better. Do you feel that Thomas Sowell would read your response and feel you grasped the argument he was making to the fullest extent? Do you feel you've honestly and accurately portrayed his position after understanding it fully?
In my opinion, you haven't. I think you're upset and its preventing you from understanding the argument being made.
> Sowell hasn't done economic research at all.
He has a wikipedia. Try your best to read it.