Most people can’t be bothered to learn and use maintainable CSS. Slapping some classes and brute-forcing a combination until it looks acceptable is good enough, I guess. CSS is so powerful nowadays and styles can be actually much simpler than before.
Until someone will actually do the work and show an alternative, show with code an undeniable better way to implement the code generators (new project and adding to existing project), with a clear path forward to land it in Phoenix 1.9, 1.10, or 2.0, indeed things are not going to change with just arguments and opinions.
So I gave a link to the existing templates earlier. Another pointer I can offer is suggesting looking at Igniter and perhaps using it to add an alternative assets stack to a project started with --no-assets, as that would give a blank canvas to do JS and CSS as one thinks is best.
That’s the path I took with phoenix_vite, although I simply delete files of the default boilerplate rather than building on --no-assets. Generally I think many people would enjoy a igniter based rebuild of the generators, but as mentioned it also needs someone to take on the work and at least some initial maintenance.
As for the core components. I wouldn’t necessarily agree that they never useful long term, but I also wouldn’t agree that they’re always useful long term. Especially the form components lack quite a bunch of composability of quite common components of forms. There was an interesting talk of Adam Wathan at laracon, where the first section is all about such affordances. One doesn’t need to agree with the way he solved things using tailwind to agree that not all inputs look the same and composability needs to be at more granular levels.
I’m not sure how much appetite there is to improve core components on that metric and I also think it needs someone experienced in this kind of work to make useful judgement calls of what’s a good or bad change. I also do not feel like phoenix needs to go to that length given in the end components are likely to evolve to more purpose built ones matching a given project more so than being generally usable.