People are doing this already even while the game is already in its current dumbed down state. Red Mages probably feel this a lot when asked to go Summoner. People will always min/max for minimal gains so long as the gains allows for it in any stretch of the means. What's happening now is that SE is removing ALL and EVERY min/max opportunity to the point where you don't even have a choice anymore. It's also what competitive players are. They want biggest odds to be the best because they like to challenge themselves to be the best.
I'm not saying this is the best solution or answer but trying to turn everyone into equals is slowly and surely sapping all diversity, fun, and creativity out of the game while not really removing the toxic players. Toxic players will be toxic regardless of how the game is played.