Drama degrees are a luxury. STEM degrees are not. If people want to disagree, that's absolutely fine, but ask yourself honestly: who does the government value more? The man who gets kids acting like trees for an hour or the one who's developing fuel-efficient engines, life-saving medical equipment and commerce-generating pharmaceuticals?
That is why some parties want to either lower, or scrap, tuition fees for STEM degrees. They add more to the country. They want to encourage more people to go into the STEM field. If someone wants to go into drama, cool. They should be doing it because they have a passion for the subject and should be prepared to pay for it.