Huh? The "Skyrim haters" as you call them, address to the company or the game in the first place not the rest of the fans who like it. It is silly to suggest that the "haters" dismiss those who like it.
Opinions are subjective. Facts are not subjective. For example a fact is Skyrim changed, skills are less, features were cut etc etc. Now if it's you opinion that all these don't matter then good for you.
When people say it has been dumped down, they do not dismiss other people (and i don't know how you got that incoherent thing in your mind) nor do they dismiss the game itself. They express their subjective opinion, so what's your problem?
You're right. Facts are not subjective. And I have listed plenty of objective facts of what the game includes that makes it deeper and more complex than previous games.
The complexity isn't lost. The facts are right in front of your face - the game includes complexity and depth and "role playing elements"
The subjective part comes when talking about which you prefer. You prefer the Morrowind / Oblivion method. I prefer the Skyrim method.
But just because you liked one version better doesn't mean that the new method is "dumbed down".