How are TUI tools just as accessible as the terminal? Take a visually-simple program like neomutt or vim. How does a vision-impaired user understand the TUI's layout? E.g. splits and statusbar in vim, or the q:Quit d:Del... labels at the top of neomutt. It seems to me like the TUI, because it only provides the abstraction of raw glyphs, any accessibility is built on hopes and dreams. More complicated TUIs like htop or glances seem like they would be utterly hopeless.

When it comes to GUIs, you have a higher level of abstraction than grid-of-glyphs. By using a GUI toolkit with these abstractions, you can get accessibility (relatively) for free.

Open to having my mind changed though.