Women didn't get to choose if they like to be men and black people didnt get to choose if they are gonna be black so there is not an issue of racism here.
I chose to be a melee DD and now I am a pugilist, you guys chose to be healers and you have to learn to be healers, that's all I know, everything else is just complaints because you want to be both DDs AND healers, AND Tanks AND whatever else god knows you wanna be.

Sorry that can't happen, either play as another class, or wait for an attacking mage class to pop, or quit the game.
An idea like a "Mage strike" can only sound funny to me (and it is).
You will not achieve anything.