Then make something better. Canonical is in this position because it does more things that are good for the end user than any other distro maker. Redhat's too busy trying to domineer the system through terribly written software like systemd to work on giving users a good experience, Arch is too centered around power users, and Slackware is similar. If you want people to not use Canonical's Linux offerings, then you need to provide something that will be supported for more than a year at a reasonable price, easy to use, and will reasonably Just Work. No other Linux distro has that at the moment, and it doesn't look like any will anytime soon.