Your "argument" seems to be: Who calls McD unhealthy or bland must be "fucking brainless", also if McD food were as cheap as it is, because it's of the worst quality, that would totally make sense. But for some reason this isn't the case. Indeed, it is "better than shit."
If you enjoy tasty food, by all means, eat it. But if you think deep-frying or pickling is the best way to serve vegetables, grilling meat puree to death the appropriate way to prepare BBQ and the main ingredient in good ice-cream can be corn-sirup, then you have a lot to discover in the world of tastes.
Go out of your comfort zone and try something new!