It's wild to me that most of the discourse around CSS-in-JS is about personal preference for how separation of concerns should be when its biggest advantage is

It's wild to me that most of the discourse around CSS-in-JS is about personal preference for how separation of concerns should be when its biggest advantage is totally orthogonal to that--it almost completely solves the issues of scope, specificity, and mapping styles to markup that so many different libraries and methodologies have been invented to cope with over the years.