Yeah I would rather just have a single interface(the terminal) for all of the tools that I use that are keyboard driven by default. There isn't anything I need from a GUI that the terminal doesn't give me.

I also can't cleanly nest and stack GUI applications in tmux like I can with TUI programs. I think GUIs are for the most part tailored towards non-power users unless its something like video editing or 3d modeling that is aimed more towards professionals

>I also can't cleanly nest and stack GUI applications in tmux like I can with TUI programs.

Sounds like a window manager problem