Obviously here's the solution.
Feral druids, you're just furry rogues. Remove feral from the game and offer druids the one-time option to class-change to rogue.
Survival hunters, you're just funky rogues. Remove survival from the game and offer hunters the one-time option to class-change to rogue.
Fury warriors, you're just platey rogues. Remove fury from the game and offer warriors the one-time option to class-change to rogue.
And so on.
[This is a non-serious post]