Because they're in large part neither functional nor artistic. Both force one to think in novel ways. The certification-for-its-own-sake majors do not.
There are reams of low-grade degrees in which the majority of teaching is in memorization, not mastering new ways to think. That doesn't advance society, particularly when it burdens young people with debt.
I have a degree in physics with a minor in literature. I took one upper div lit class a quarter. I never memorized a thing. Instead I read a ton, both assigned and peer review, and wrote a ton, both essays and creative. My lit classes are far more memorable than my physics classes because I learned the skill of communicating my ideas. "Low-grade" creative writing taught me that my ideas will never be conveyed as I hoped; good criticism can be immensely helpful; and rewriting my work is when something truly useful comes together.
> There are reams of low-grade degrees in which the majority of teaching is in memorization, and not mastering new ways to think.
The biggest complaint from anyone I know who studied medicine/pre-med is the sheer amount of memorization involved. Must be a useless field of study.
What exactly do you think an English major is like? Humanities majors absolutely force you to think in new ways, and I'd argue much more so than engineering or CS majors.
English is an unowned cultivated intellectual property that greases communication which greases all other human endeavors. I think its underappreciated.
Not all education needs to advance the frontier, much of it is about maintaining what we've already claimed and passing it on to new generations.
I don't know how much our reams of communications, generic business and English majors are advancing humanity. (Granted, I studied finance [and engineering] in undergrad.)