My point is that comparisons between them are made all the time. I see RPGing compared to a novel, or a play, but you get to script and direct your character! Or compared to a choose-your-own adventure, but the choices are unlimited.I have said this in many more words, but fundamentally you're getting disagreement because people do not believe those are comparable activities.
In another active thread, that I think you're also posting in, FKR games (and perhaps RPGs more broadly) are being characterised with the label "tactical infinity", which contrasts with board games.
The notions of choice and control in play are constantly used to describe RPGing, and compare it to other activities which somewhat resemble it. But now, as soon as I want to compare (say) playing Burning Wheel to playing through the D&D module Dead Gods it's an impossible comparison?
EDIT: pipped to the post by @EzekielRaiden.