Well, in a word, no.
In a few more words: not at all, not even slightly.
To explain briefly:
> Apple specifically wants that you cannot use non-apple displays
No. Apple does not make or sell or offer non-HD displays and has not done for over a decade. Apple mainly sells phones and laptops with built-in hiDPI screens. Desktop computers that use external screens are a small part of its range, and it sells its own very high-quality screens for those.
Because font antialiasing is pointless on a hiDPI screen, and it only offers hiDPI screens, it removed antialiasing from its OSes.
However, the kit does still support old screens and you are free to use them. The antialiasing feature is gone, but to my (not very strong) eyesight it doesn't matter and stuff looks fine.
> artificially worsening the experience for the user
No. This is paranoia.
> It's hilarious there are people that actually think this is totally okay
People think it's okay because your interpretation is paranoid.
> not just plain anti-competitive
How is REMOVING features anti-competitive? In what universe does taking something out of your products hurt your competition? That is absurd.