Hmmm, well I have mixed opinions on the subject like usual. "Robocop" on it's own is a very good movie, and the sequels were largely just cash ins that never really "got" what made the first one so popular and decreased in quality, I can agree with that.
Honestly, I think part of that made "Robocop" work was simply that OCP weren't really the bad guys in an absolute sense, even if they did some bad things. It wasn't that "the bad guys already won" per se. At the end of the day OCP was out to make money, but it's plans weren't all that bad either. OCP ultimately wanted to do away with urban blight, quell the crime problem, and make Detroit a better place to live. This being despite the fact that Detroit is a festering hell hole full of out of control crime, which the police, for all their resentment of becoming employees of OCP, simply cannot control on their own. On a lot of levels tearing everything down and making the city better for a lot more people is not an ignoble goal no matter how much they stand to profit from it.
What I think happened with the second and third movies, was that they decided that they needed to go more left wing, with the corporation being made flat out bad, and siding with all of the people that are going to get stepped on by this program. They seem to themselves forget the very same cyberpunk reality that justified the creation of Robocop and a corporation even being able to consider releasing what amounts to robotic tanks on the street for a reason. It never seems to really be able to explain why a city in the midst of an ongoing gang war/riot where Robocop is pretty much blowing people's faces off every 15 seconds to maintain anything even approaching order, should have us empathizing with these scumbags that the corporation wants to clear out. It seems like most of the normal people in the city are likely to wind up benefitting from this, after all you can't have a city if your going to pretty much carpet bomb everyone. Robocop 3, the worst one in the series, seemed to have the most problem with this whole concept where to try and sell this they had scenes of some dude getting an eviction notice, and then sitting down in an EZ chair right before a wrecking ball comes through the roof (or something close to that, it's been a while, but I remember the scene as being absolutely hilarious especially seeing as your presumably supposed to take this as a serious threat). The movie also as a finale has the police making a stand against corporate security on behalf of all these "poor defenseless folks" sort of forgetting the world they are supposed to be in, and what the police station/situation looked like pre-Robocop.
Honestly while I could be forgetting something from the movies where this point was brought up and dismissed, I seem to remember it wasn't until the less-than-wonderful Robotcop cartoons that they really decided to focus on the whole issue of Murphy and OCP pretty much wanting exactly the same thing: a better Detroit. The areas of the city basically being lawless regions full of violent human waste, the main difference being that Robocop runs around shooting them in the head one at a time, where OCP wants to clear them out all at once and rebuild afterwards.
In short you had some potential to ask some really good questions here, the kind of thing that comes up once in a while in "Judge Dredd" stories (which seemed to inspire this, along with Cyberpunk fiction that was still a cult thing at this point), and it was squandered in favor of turning it into an unambigious face off between good guys and bad guys, and me occasionally wondering why it was that the bad guys seemed to be the only ones with anything approaching long term goals or an achievable objective. I mean I'd probably prefer to live in "Delta City" than risk getting murdered every time I stepped out to get a quart of milk, I never forgot the world that justified the rest of that ultra-violence Robocop was engaged in and seemed to have no hesitations about unless OCP was involved and the plot demanded it.
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As far as the Japanaphobia thing goes all I have say is "huh?" to be honest the evil Japanacorp was a stock villain in cyberpunk fiction and seemed to be sort of a nod to "Bubblegum Crisis" and it's Genom corporation which was one of the things that helped make the evil corporation into a stock villain in the media (though I'd have to check the specific dates, I know Genom inspired a lot of stuff in the genere, Robocop might have pre-dated it). I was mostly disappointed that we never got to have a really good fight between Robocop and the Android Ninja(s) he kind of just got his butt kicked.
I kind of figured that if somehow Robocop 3 didn't kill the franchise (which it did) they were leading into a sequel where you were going to have two megacorporate private armies duking it out in the destroyed streets left and right, and really... what's more "Cyberpunk" than that?
At any rate if we ever somehow get more "Judge Dredd" movies, perhaps we'll finally get to see some good cyberpunk law enforcement stories, and see the movies the Robocop sequels never were. Until they we'll have to settle for "Almost Human" which seems to be gearing up more for a mechanical revolt storyline (yawn) sooner than anything dealing with the morality of urban blight and renewal. Of course at the same time "Almost Human" doesn't have a world as out of control as "Robocop" or Dredd's "Megacity-1" for it to carry the same kind of weight.