"Never said I was action junkie. I said other Godzilla movies handled the political satire and action in a better way."
Yet your emphasis on the words "action" and "entertaining" suggests that what you wanted wasn't something intellectually stimulating, but rather something to satisfy the inner child with kaiju destruction and to turn your brain off to.
"Doesn't mean the movie is "good" either."
Only if you ignore the details.
"Yeah, so basically, this movie was not about Godzilla, it was about the inefficiency in Japanese governance."
What on earth are you talking about? The entire movie was about Godzilla from start to finish. Yes, the movie was about the inefficiency of Japanese bureaucracy, but Godzilla himself was a representation of how small problems left unattended snowballed into even larger and more catastrophic ones with even more dire consequences.
"Just because it is set in reality does not mean it needs to be dull."
A person's mileage may vary when it comes to these kinds of films; "2001: A Space Odyssey" was a really good movie, but it's not for everyone. A person, a child especially, who went in expecting full-on monster action is going to be unsatisfied as it isn't that type of film.
"Guess I'm not pretentious enough to enjoy this aspec of the film."
It's not a question of being "pretentious enough to enjoy this aspect of the film", it's more of a question of your willingness to go along with the story and using your head to actually think about the movie's ideas, the stuff it's presenting, etc.
"None of the characters had personality. They were all flat."
The characters had some personality - Kayoko was an ambitious politician who's looking to step up her career to become the next President, Hanamori was the one forcing the Prime Minister’s hand to make a decision when he was racked with doubt and reluctance, etc - but the movie wasn't strictly about them. It was literally "Japan vs Godzilla".
Just wanted to ask - do stories have to have characters that are "relatable" or have a "personality"? Consider the stories by Arthur C. Clark and Stanley Kubrick, for example - both are cold when it comes to people; Clarke is simply indifferent to them, his characters are never more than names on a page, while Kubrick regards people with a minatory cruelty, a cynic when it comes to humanity or else his films seem like giant stage sets where the camera remains at a detached distance while actors barnstorm with theatrical regard.
"Going from one boardroom to another boardroom discussing the same thing over and over is reptitive."
I can understand the meetings being repetitive, but the dialogue wasn't repeated over and over like in certain anime shows. "Street Fighter V's" campaign is a cringe-worthy example of being such.
"I said the other movies handled the preachy part in a much better way without being tedious and dull."
The Godzilla movies in general weren't as grounded as "Shin"; this was a series that had aliens, psychics, robots, supernatural entities, maser tanks and all sorts of bizarre stuff, the human element in the vast majority of said-films a minor annoyance until the monster arrives. Here, the human element is a big part of the film, and a part of Godzilla himself judging from the ending. In terms of the movie being "preachy", it isn't as annoyingly overt and ham-fisted like some of the 60s/70s stuff or like the "Rebirth of Mothra" movies.
"I'm capable of writing something more thoughtful but what for?"
Why not? If you feel you can do better, by all means, go ahead and write the Godzilla movie that you want, be it in the form of a script, film (animated and/or live action), a comic, a video game or whatever. I'm not being facetious, I'm serious - I've seen tons of amazing things done by fans for different titles on YouTube and Deviantart that shows their love, dedication and talent in all these different mediums, and to see something for Godzilla, especially if it's really good and shows that same level of passion and talent, would be a real treat. The worst thing you can do as a fan - that is, assuming that you are a fan - is to do nothing.
"It's just a dumb movie meant to entertain."
Not at all. The movie feels like someone had poured a lot of time and research into the various elements within it, and that's heavily reflected. I think this might be the closest people are ever going to get to a hard sci-fi Godzilla movie, which is saying something considering the fantastical nature of the character.
"I'm not into this whole idea of dissecting people's opinions about a movie."
It helps to see where people are coming from in terms of what they like and/or dislike about a movie.