Obviously thats not what we got, but I feel like the set of established UI patterns is manageable enough that it could be built.
A great example is the new <select> styling that developers styled in all kinds of creative ways. Now give me that for comboboxes, trees, data-grids etc...
You shouldn't have to care about screen readers the same as you shouldn't have to care which browser someone uses but you always have to care about people; people who can't see or hear what you create, people who can operate a keyboard (or keyboard-equivalent) but not a mouse or touchscreen, people who can use a touchscreen but not a physical keyboard, etc.
https://developer.mozilla.org/en-US/docs/Web/API/Element/ari...