I didn't want to weigh in until I saw the movie for myself. Going in, I was a bit skeptical about some of the things I'd heard about it.
About two thirds of the "mistakes" in that list were things that definitely happened. The problem is, Jackson is trying to tell more stories than just The Hobbit here, many of which were published in Unfinished Tales, or the appendices of Lord of the Rings, which it's clear you haven't read. In particular, the whole necromancer plotline was HUGE (and the primary reason Gandalf repeatedly disappears throughout The Hobbit). That "mystery white orc" is
Azog the Defiler who absolutely DID exist and DID have a grudge against Thorin's family. The book was told strictly from Bilbo's point of view, leaving out things that he didn't experience. Most (not all) of the additions and changes here are things that happened, but Bilbo did not witness, or changes to the timeline, not introductions of entirely new events and plot arcs out of the blue. The meeting at Riven
dell wasn't shown in the book, but is altogether a minor change considering that even if it did happen Bilbo wouldn't have known.
Honestly, it's hard to take that list of mistakes seriously, when it's got so many of its own. And you should know better than to use IMDB reviews for research.
and they are trying to maximise profits by having 3 films at 3 hours each
Yes, because investing money in extra special effects is the cheap and lazy way to do things, right? Keep in mind that this cost them far more to make than it would have at two hours.
The fact is, Jackson made the movie he wanted to make. New Line isn't demanding a trilogy of him, they're just giving him creative control to do what he's passionate about. I don't even agree with all of his decisions; Azog, though definitely a real Tolkien-made character, shouldn't have been anywhere in this movie, some of the action sequences were too long, the pacing in the first act is all over the place... but this was still about making the movie he wants to make and having fun, and he did that.
Ignoring the obvious fact that as a business,
making money by selling products is what they are supposed to do and there is nothing wrong with that, you appear to have watched the Star Wars prequels (which I entirely agree with you were abysmal) and left with such a strong cynicism as to completely blind you to even the possibility that something can be successful
and good at the same time. It's pretty apparent that you went in already having decided to hate it, and spent the entire time looking for things to complain about. You may resume calling the people around you sheep when you yourself stop acting as such a slave to your own mindless
skepticism* cynicism.
But even if they were sheep, even if you were right about every one of your complaints (you aren't; they are mostly poorly thought out ranting), you must remember that
IT IS A VIEWER'S RIGHT TO ENJOY WHATEVER MOVIE SUITS THEIR TASTES. If a person likes drawn out CG action sequences, and they paid to see the movie, they got their money's worth. They got exactly what they wanted. You seem to be under the mistaken notion that entertainment should be specifically geared toward you, and that is just a ridiculously short-sighted and narrow-minded point of view.
*Important distinction. Skepticism is based on logic, and willing to change views when a better argument shows up. Skepticism Cynicism is just negativity for its own sake.