Let me start by saying that you absolutely have the right to play wow as you please, specially because you seem to be quite a considerate player to begin with.
But i have to ask, if you are not interested in the IMO real endgame content wow provides: Raiding, Rated PVP and Mythic+, would it not be a far superior game for you something like for ex Skyrim or the Witcher 3 ?, because i honestly think that in terms of role playing, questing and storylines, they are far better, and also because in the case of Skyrim the content at your disposal is literally endless, because of the fan mod making that never stops.
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That is obvious, but the thing is, and only if we identify casuals as people not taking part in end game content, would they not get more fun playing another games?