I usually don't want people to be able to create infinite variations of things because of a lack of consistency. I like defining a few concrete component style

I usually don't want people to be able to create infinite variations of things because of a lack of consistency. I like defining a few concrete component styles BEM style and having it easy to re-use them and other people not abuse them too much. After the initial components are defined I don't want to think about what border or colours are involved I just want to drop profile-cards in various places. It feels like this "functional" approach doesn't solve enough real-world use cases (that I have experienced at least) to justify using it.