Outside of privates (where a good chunk of the student body cone from families with money to burn), you wouldn’t find a large concentration of students majoring in “peace studies” or “women’s studies” anyway. At the vast majority of publics, the vast majority of students pick “practical” majors (with even those majoring in history or English often looking to enter education). The sole exception I can think of to that is psychology.
An example is Cal. They have one of the top classics departments in the country, yet how many undergrads there major in classics?