GUI Emacs is a very thin GUI skin on TTY Emacs. As an example someone brought up elsewhere in this thread, you can't scroll (with the mouse) in Emacs without bringing the cursor with you. Scrolling without moving the cursor doesn't make sense in a TUI environment, so it doesn't exist in the GUI version either.
Your second point is very subjective and most people are bound to disagree with it. You certainly can't argue that like it's an objective fact, because it's very much not objective.
> Scrolling without moving the cursor doesn't make sense in a TUI environment
It makes perfect sense as soon as you realize there is no reason the cursor has to be the cursor. In curses: curs_set(0); then draw your own 'cursor' wherever you like.
Anyway, GUI emacs is way better than terminal emacs. Image support (in terminal emulators this is always an awful hack) and support for different font sizes in the same frame at once is something I'd not give up.
(2) There's no better environment available for dealing with text (including notes, papers, slides, email, &c.) than Emacs.
Why do you hate future programmers so much?