Manjaro doesn't change that by making it easier to install, it baits users in with AUR packages and inevitably disappoints them because it's breaks your system even more often than Homebrew does.

The problem with users, of pretty much anything, is that they're stupid. Even me! I am stupid. When I buy a car, I'm not so worried about the drive train or the complexity of the transmission or how viscous the oil it uses is. Because that I don't understand. Pretty colors, sharp lines, and a good price makes my decisions. But those are surface level.

GUIs may attract more users, perhaps that's a metric they're better in. That doesn't make them faster to use, or even easier to use! Users greatly skew towards familiarity, but typically familiarity in surface-level ways only.