The kindest thing we could do for future programmers is let Emacs and all tty-oriented editors die. There are much better options now. UI has improved a lot since the 1970s, let's embrace it.
(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?
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.
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.
(As another example where *nix systems could improve a lot, the Midnight Commander tty app is great, but still not quite as intuitive as the old 'DOS Shell'. Weirdly enough, I find that other TUI apps, such as dselect and aptitude, are quite outstanding but you do need to be on a Debian-based system - they aren't a thing on Fedora or CentOS.)
They may be easier to learn (since they have pretty minimal functionality compared to Emacs) or easier to discover when you are new to them but they are definitely not easier to use. I use Emacs not because I am some kind of masochist but because it is the easiest way to get my stuff done.
That's far from obvious. I recall terminal interfaces rather fondly. Modern interfaces are often more like a flock of multi-colored rabid weasels trying to get in the way of my work.
Which modern editor has tools like SLIME or CIDER?