Three things I think: (1) Unstyled HTML looks terrible. (2) There's relatively few native components and the ones that exist are limited. Like not even what

Three things I think: (1) Unstyled HTML looks terrible. (2) There's relatively few native components and the ones that exist are limited. Like not even what JQueryUI gave you 15 years ago limited. No cards, accordions, avatars, and other sorts of basic building blocks. (3) No real support for common page layouts. Like a Dashboard or Hero marketing page sorts of things.