Because the show just isn't that great

The art work/character designs are awful and the creators make no effort to improve them. The voice acting quality is shitty. It’s intentionally badly drawn and the Asian animation team are the only ones who try to fix it by animating it well but they can’t do much with what they’re given. So right off the bat it’s not remotely pleasing to look at/listen to. The music hurts my ears and they break into cringefest songs constantly.

Then we get to the actual story. Steven is a selfish, immature asshole of a main character who basically becomes a Gary Stu. The plot makes no sense and is constantly trying to be deeper than it’s capable of being only to let its fans down.

SU is like something a six year old would watch and yet 30 somethings are watching a screeching manchild talk-no-jutsu at everyone while humanoid gems simulate fucking each other, acting like it’s some revolutionary show. Why would anyone watch this? It’s lame.

Oh dear. The Gems are firmly established as alien rocks that make hard light constructs to form their bodies which is why having a cracked gem is so horrible. It’s like their brain being broken. What’s the point of trying to radically retcon things AFTER the show has long since ended?

 Okay…so…

The positive. Much more fluid animation, Spinel, the villain, in particular has great animation and she’s very expressive and entertaining. Connie and Steven FINALLY kiss. The music was very nice. And it was kind of funny to have Steven sort of lampshading how crazy his life gets.

And now…the problems.

AND THERE ARE MANY.

Okay, so, the villain is someone who has NEVER EVER EVER been mentioned before. Not once. Not even a little. She was just a playmate of Pink…but didn’t we already see she HAD a playmate back on Homeworld? This kind of contradicts the whole “she used to play a ton with White Diamond’s pearl, who got all cracked and messed up for her trouble” thing? And didn’t she also get her OWN Pearl to, y’know, make her happy and all that?

Also, the whole plan of the villain’s to inject a bunch of evil liquid into the Earth that’s gonna, when fully injected as Peridot says, basically wipe out all life on Earth and we clearly see it ALL injected and…the Earth’s fine, it’s just Beach City that’s ruined. And they repair it. Mostly with…and I’m not kidding you…STEVEN KISSING THE GROUND OVER AND OVER TO BRING THE FLOWERS BACK.

Oh, and Steven fuses with his dad who makes a four-armed human-looking kinda hot in a disturbing sort of way male fusion who looks like if Greg was, like, ten times hotter and with long flowing hair and it’s messed up. I mean, fusion’s kind of been basically a stand in for sex or y’know, an intimate relationship of a similar nature and…YES, they DO need to try  and get Pearl back to normal and invoking something wild and crazy and against the grain works but…still…EW. Just…EW. It comes across like fetish fuel!

Also, STILL no indication of what happened to the people in the Zoo. All those poor humans. OR all the, y’know, shattered and made-into-pieces-and-then-mutants gems that are still wandering around or inside the Earth and not part of the Cluster. And how do they address the whole “Homeworld caused genocides thing”? Two lines. Steven says though he’s enjoyed dismantling the empire and freeing all the worlds, he has to get back to his own planet. Yellow pleads with him to stay since she’s dismantled all her armies and freed all her colonies. And…that’s it.

Now, yes, Blue is no longer shattering people either. Yes, White is no longer judging based on appearances. That’s all good but…to just…HANDWAVE away the whole genocide and slavery and everything else is so…insulting.

We don’t even SEE any other races. I mean, for all we know, the gems LITERALLY WIPED OUT ALL LIFE IN THE UNIVERSE! Don’t act like you saved the galaxy, literally every other sentient race seems to be gone! Also, Homeworld is still literally in two pieces. Cut in half. Doesn’t look like you’ve fixed that up.

Some hot su movie takes:

-they infantilized the diamonds like they were scary as HELL in previous episodes, but then they turn into wine aunts who apparently find their greatest priority to be living with Steven like..........

-steg shouldn't have looked like that, like if you're gonna make references to things (jojo) at least make it slight, not something as big as a fusion

-a theme of it was to get over pd and then spinel literally goes to the diamonds and isn't dissuaded by them being like "ye ur not her but ur SO MUCH like her omg"

-the poison was enough to kill all organic life on earth and it all got released and somehow didn't kill all life on earth?? Sorry??? Also 1) there's no way they actually managed to save everyone y'all clownin and 2) there's also no way Steven could just "kiss away" all the damage. No. There was WAY too much poison for that

-if the gems were like? Factory reset? Deadass they shouldn't have memories like. That shits gone, homeslice, yaint getting it back

-Did garnet REALLY not see this whole series of events in her future vision

-timing is pretty wack in the movie like. Morning, Steven makes that broadcast or whatever, and spinel sees that and has a cow,,, then later in the afternoon she has this MASSIVE injector and that rejuvenator like ok.... sis WHERE did you get that

-Pearl has plenty of time to explain who Spinel is during Other Friends but she just like... doesn't explain

That’s literally it. He was a one off character that people had a completely insane hatred for, and the writers brought him back not because it made any sense but because he was hated by the fandom so much they played into that.

In his first appearance in the already gross and awful Stevonnie episode he was kinda pushy but nowhere near bad enough to be considered a horrible person. He wanted to dance with Stevonnie because he thought it was a cute woman, which I don’t get why that’s an issue when the show has basically everyone else getting all hot and bothered by Stevonnie too (which is super gross cause wtf they’re kids). And when they defuse Kevin freaks out realizing that the person he was dancing with was two kids and backs the hell out.