Agree with your point on nano. I used it as a beginner too, but once you get past the basic typing something in, vim is king.
However, I disagree with the rest of your post. Hjkl are superior to arrow keys once you get used to them. I thought that day would never come, but I got used to it way quicker than initially anticipated.
As a 60% owner and 34 key ergo advocator, also disagree with the last point.
Just FYI I am not downvoting you.