Nice bullshit you're spouting out. Mythic raiding is what's keeping the game going, this includes "casual" guilds still on progression. The top "min maxers" probably don't even cover 30% of Mythic Raiders and they barely effect you.
You claim your class is getting "nerfs after nerfs" because of these Mythic raiders, which is also bullshit. If something is doing way too much damage, it's been nerfed (everything nerfed recently has needed it, and there's not even been many nerfs) not just because of Mythic raiding but because of Heroic and M+. Also sounds to me that you don't exactly get much out of your class to begin with so a few nerfs aren't going to be crippling you.
Also try and look at it from the other side. You enjoy role playing, which is just alien to me. I enjoy Mythic raiding and getting the most out of my characters, which seems to be alien to you.
My Mythic raiding apparently ruins your enjoyment of roleplaying, the lore and your class (99% sure raiding is what's pushing class mechanics to be better/improved but oh well). Now your role playing and lore is ruining my enjoyment of the game because i'm forced to do shitty quest lines, scenarios and have annoying pets and toys all over the place.
Not a single area of the game ruins another. Sure, they could focus more on one thing and ignore others, but why should they focus on what you and ruin the game for someone else?