Much 2 Learn- econ and philosophy- both liberal arts majors- are extremely rigorous and difficult at Princeton. I’m not sure what the basis of your comment is- but I know (and have hired) history, political science, and literature majors from Princeton whose workloads and academic standards are up there with the most rigorous majors elsewhere.
What is your basis for your comment bashing 3/4s of the academic departments at Princeton may I ask???