Who doesn't say: "life is messy, life is filled with hard tradeoffs, imperfect answers, deal with it, grow in it."? I recently watched a Woody Allen movie with that conclusion, and I assure you he was not working out of a conservative position. 

The only people I can think of who don't subscribe to that are called ideologs, people with an ideology that overrides their connection to reality. The most prominent current examples are the tea party remnants who have kept Congress bottled up. They have a clear "don't deal with it" component.

I doubt that I will read Thomas Sowell anytime soon, I imbibed  enough of that kind of philosophy as a student at UChicago. If he could contribute to this discussion, I am sure you will find a way to bring him in.