This is yet another part of the Right's war on higher education, specifically on general education that is a part of four-year colleges in the U.S. Those classes are a form of civic education. You learn a little bit about a range of subjects: history, science, political science, philosophy, etc, etc. By the time you complete these classes you know at least the basics of how the scientific process works, you know at least a little bit about how history works, etc, etc. You've also sat in classes with people who have different views from yourself (at least within the range of diversity at your college).

Those classes probably feel like they're holding you back but they help you have a more expansive view of the world. It's easy to see why the Right would hate this. This kind of straight-to-work thinking leads to workers who know less about how the world works and have less empathy. It takes young adults at a very impressionable time in their lives and hands them over to be indoctrinated by people like Thiel.