Until a viable alternative is presented, I doubt Discord will die anytime soon. Part of the problem is people have a hard time accepting that even if you make the best meal in town, you've gotta get people to step inside before they'll try it. To an extent, this does involve winning a popularity contest of sorts if you want Discord to die.
I think often times folks are torn between enjoying a space/app as is, and making compromises to attract a larger group. IMO Linux has the same issue and that's part of why die hard fanboys get so aggressively defensive when this is brought up.
It's the software equivalent of being the bitter "nice guy" that simultaneously wants to attract a girlfriend (users) but is kind of an asshole to women. You might think you don't stink but please wear deodorant.