> Here's the obstacle: Motor skills. It just takes way to long to first memorize reams of commands and then to train your fingers to issue those commands effortlessly.

You don't have to use the builtin keys. I don't. There is Spacemacs, evil mode, etc. so you can use VI keys if it works better for you.

Emacs is about making it work like you want. Emacs adapts to you, not the other way around.