Every meaningful plot point wrapped up
Bad guy walks away still alive, his people still own the galaxy, and he's obviously coming back for a second battle.
"Every meaningful plot point wrapped up" my ass. For all we know, if they didn't make ESB, it could've ended with a Halo Reach-style ending with the Imperials bum-rushing the Yavin IV base after the Death Star was destroyed and all our heroes died fighting like it was the Alamo.
Why are you constantly jumping between the two extremes? Its either sunkillers or rentacops with you. I already brought up xcom as a reasonable medium that makes them powerful without shattering the setting.
Sun-killers were Sith, remember? If anything, they'd have fought against the Jedi of old, which we did see in the Tales of the Jedi comics.
The empire doesn't control every single plane in the galaxy, there's billions of worlds, especially on the outer rim, where neither the republic nor the empire could have had reasonable grasp.
From ANH's perspective, the Empire controls damn near everything. Tatooine was as far from the core as you can get, and yet, you had Imperial patrols up the ass. If you go with that explanation of the Empire not being everywhere because LOL EU SAID THEY NEVER HAD A GRASP IN THE OUTER RIM then you also have to accept past Jedi and Sith who can outdo the Death Star since they're just as much part of the EU as well-especially since they came in the early parts of the EU.
If there were literal gods of cosmic power ruling for 1000 years that's not something you could wipe from the memory of the galaxy, especially on tiny desert planets in the middle of nowhere that nobody cares about. Yeah on corsurant maybe, but on most "rural" planets? No way.
Especially considering the worshippers that would innevitably pop up all over and that religions are the hardest thing to kill.
Yes you can. The Chinese lost most of their cultural memory after a few years of Communism destroyed their heritage. The Empire has had 19 years to rule over the galaxy. That, and the Empire KILLED the Jedi, so despite their great powers, the Empire did manage to kill them all, so even the people who believed in the power of the Jedi would be pretty scared of the Empire after the Empire killed them all, and they'd obviously keep their mouths shut about them; kind of like how Uncle Owen lied to Luke and told him that his dad was a navigator on a spice freighter instead of being one of these magical Jedi.
The only rural planet we see in the films is Tatooine. And it's firmly under Imperial control.
@The Ugly One
The Thrawn trilogy came out 14 years after the first movie and gives you no more insight into it than the fact that Lucas, decades later, gave Filoni the thumb-up to build the Ahsokaverse. In 1977, Lucas hadn't even planned for Vader to be Luke's father. The intent was for Leia to be Luke's love interest, a plan that was scrapped after it was clear that Ford had 1000x the on-screen chemistry with Fisher that Hamill did. Making Vader Luke's father was come up with in the bull sessions for ESB. So no, the Thrawn trilogy wasn't planned.
Again here we have you making shit up. There was an obvious love triangle between Han and Luke for Leia's hand, so no, Leia was not designed right off the bat to be Luke's love interest, since that was still up in the air as to who ends up dicking her in the end. And again, that doesn't invalidate the point I made with Vader's quote about the Force. Lucas was a religious man; the Force was a stand-in for the power of God, and Vader's statement was akin to saying that the miracles from the Bible are a small taste of God's omnipotent power and that God can do more than a nuclear bomb. Which, since the 1977 Star Wars is basically David vs. Goliath in space, makes perfect sense.
Also, the Ahsokaverse? Really? Lucas only gave a thumbs-up to TCW on the condition that AHSOKA DIES AT THE END OF THE SHOW. Filoni only got away with not killing her because the company was sold before the show could wrap up all its seasons. If Lucas never sold, Ahsoka would be deader than disco by the end of TCW.
And again, the Thrawn Trilogy came out pretty early in the EU's run, when all the EU authors still needed Lucas' expressed persmission for their ideas. And this was before the Prequels or TCW. And not only did Lucas sign off on this OP Force stuff, but the fan reception to them was pretty positive, as well. So Lucas was in favor of OP Force stuff, and the fans were likewise in favor of OP Force stuff. Sounds pretty universal, if you'd ask me. Again, if your interpretation was correct, would the fans not reject these works too, even if Lucas accepted them?
What, is there some magical source about the Force that understands it more than Lucas and the fans do? Next thing you'll tell me, you understand the Force more than Lucas does.
Lucas has for years claimed he had this expansive, coherent universe all in his head from the beginning, but we have plenty of notes, interviews, essays, and the like from the late 1970s revealing that he's retconning his own story. All he ever did was throw shit at the wall and see what stuck and give the thumbs-up to things that sounded cool.
That pretty much was proven to be true when Kenobi starts yapping off to Luke about how the Jedi used to run the Republic and how the Empire corrupted it all, while Vader betrayed and murdered Anakin. Even without retcons, you'd still need to fucking explain all that with more works down the road, meaning that yes, Star Wars started off as a movie that wasn't self-contained, but rather, alluded to works that would obviously be published in the future, like how things ran under the Jedi, how the Jedi were wiped out by the Empire, and how Vader betrayed and murdered Anakin. And of course, Vader gets away from the film's final battle unscathed, he still has a galaxy's worth of resources and manpower to call upon, so obviously that called for a sequel, too.
When they made Star Wars, they didn't know if it would succeed, and were deliberate about ensuring the ending left an opening for a sequel, but didn't leave all the major plot beats unresolved - let alone this idea you have that they didn't plan to show the audience that the Force is powerful until 1991.
They did leave the major plot unresolved, did you not see Vader flying away unscathed? That goes to show that the main conflict was left unresolved. The Empire still hasn't fallen, its top warrior is still alive and well. Meaning that all you've done is give the bad guy a black eye, and this battle is far from over. Like I said, a self-contained story would be something like Sleeping Beauty:
A) Maleficent is introduced as the main bad bitch, curses the princess.
B) Prince Philip comes in to try and rescue the princess.
C) Philip kills the bad bitch, saves the gal, and they live happily ever after.
THAT is a self-contained story. They introduce a problem (Maleficent, Vader and the Empire) they show a solution (the Rebels, Prince Philip) and they end the problem. Except unlike Sleeping Beauty, the problem doesn't end in ANH, and the problem is still there, still owning the galaxy, still ready to strike back.
Sleeping Beauty is a self-contained story. Star Wars 1977 is not.