We have plenty of big cameras, not a single pocketable, like the M100/M6.
Plenty of big cameras? Is the R5 big? Depends on the point of view. I don't think.
For me, a handholdable camera starts with the 5 D IV, R3 being optimal. There are already plenty of pocketable cameras on the market, all the MFTs, Fuji's APS/Cs, Sony's APS/cs, Canon's R7, R8, R, RP (with RF 28mm ), Leica's Q2 & 3.
Would even smaller Canon cameras make sense? For many, certainly. I surely understand your wishes!
But I was only expressing my very personal opinion, since I hate pressing 3 buttons at a time when I want to press only one. my nice little Olympus MFT sleeps unused in a cupboard. The smaller the camera, the more cramped it is. Fine if you have small hands, I don't. And this why I abhor small cameras, and keep hoping for a larger R5 II. (Knowing it won't happen).