What you say is true, but TUIs are not strictly worse than GUIs at accessibility. The fact that text is inherently more legible than graphics means that, for example, blind players can play console-based roguelikes (and do: https://www.rockpapershotgun.com/playing-roguelikes-when-you... ), and Dungeon Crawl Stone Soup even has configuration options to improve the experience for blind people: https://github.com/crawl/crawl/blob/599108c877da33bc03cb73da...