The other side of the coin is that I am very grateful to Blizzard for making the lower end of content accessible to players like myself who are disabled with a disease that makes it difficult to play. I have chronic fatigue, numbness to my fingers, and chronic joint pain. I am the "demented monkey" you speak of; and for me LFR is fun.
It's obviously a good business decision to make content accessible to the vast majority of players like myself who aren't able to devote as much time to the game due to lack of energy, ability or other commitments.
It really is just a game. It's cool that you are talented enough to be or have been one of the top players at one time...but it really IS just a game. Perhaps it's just time to find a new challenge in gaming or in real life. Perhaps something entirely different.