I would instantly quit, because I like to be challenged. There is a reason why WoW has free-loot content like LFR/WorldQuests and there is a reason why WoW has mythics+15, real raiding and rated PvP.
Simply because different people like different things and people are of different skill level. If you are a casual you can do LFR and be fine with it. If you like a little bit more spice you can do harder content.
It is good the way it is