You claim that the game is bad and evil because "it makes you a rat chasing the golden cheese" manifested in the form of all the achievements and prestige levels. You go on to call it "hard work".
Sounds like the problem is from you, not the game.
Most people tend to (or at least, most people *should) play games for fun, not with a strict schedule of attempting to go through tasks even if they are undesirable or will not give you any sense of enjoyment.
I never prestige-ed once throughout all my time playing any of the COD games. I just didn't want to. I just played however way was fun and stopped playing when it stopped being fun.
It's good that you matured though.