I think the problem is many people who choose liberal arts majors do it with the mindset of "this is an easy major, I'll be able to graduate with a high GPA and

I think the problem is many people who choose liberal arts majors do it with the mindset of "this is an easy major, I'll be able to graduate with a high GPA and minimum effort". In STEM even if you pick the easiest classes, it won't be as easy. Those are the "lemons" of liberal arts degree holders. They aren't cut for college level difficulty but still want the signaling of it. And one problem is that universities seem ok with this, There's a ton of discussions here about how those people should not go to college, or go to community college etc. One could argue that it's not the university's fault, that the students, should make reasonable adult choices. For those who go into the field to truly learn, they can indeed get a ton of very useful knowledge, but I'd argue they're a minority, and they'll have a harder time to succeed due to all the "lemons".