The "negative screenings" have been debunked as fake, and even if they were true, they come from the minds of people who disliked the movie from even before it started getting made, their opinions come from biased prejudice and therefore cannot be taken seriously.
This is where I strongly disagree with you, respectfully though. I never cared about Captain America, Iron Man, or Thor and the Gang (lol...sounds like a band), but MCU found a way to make me care. When I go back and read the old stories they borrowed from, in my opinon, the MCU movies are better. U can't for the life of me tell me that X3 was better than the comic's Phoenix Saga, can you? I was very very clear in my post to mention that I don't have a problem with people changing things and taking liberties to help best suit the medium that the stories are being told-- MCU has maintanied the essense of their characters they act, talk, and feel lilke the comic-counterparts. X-men has FAILED at this. I don't recognize Cyclops, Storm, Jean, Psylocke, Gambit, Iceman, Beast--- none of them maintain any integrity from the comic counter parts. If you disagree with that even after I was explicit and detailed in my post then I don't think i can anything that will make you see where I'm coming from. All i can say is be thankful you had 20 years with Fox (you seem to be happy w/their product)-- and I'm thankful that there ride is finally over and very enthused that MCU gets their turn. You as a fan got what you wanted, me as an Xmen fan didn't so i'm happy I finally get a real shot and what I'm looking for.
I never said that, what i said is that X3 is not the terrible movie everyone says it is, which is true!
The MCU has changed the essence of everyone but Captain America practically.
Look at Thor, Loki, Hulk, Odin and Hela in Thor Ragnarok by example: They are all 100% out of character. Look at Tony in Iron Man 3, he is a clown, the examples are endless, the problem is that they put "humoristic" storytelling over anything else, THAT is the single biggest flaw the mcu has.
X-Men have totally kept the essence of the characters and their stories, even thought they have changed lots of stuff, that is what any adaptation should do. They can and should do even better, but no company is gonna do it because we are not the target demographic, casual audiences are.
I doubt that after Captain Marvel/Avengers Endgame/Dark Phoenix i will ever gonna see another superhero movie in theaters, ALL OF THE STUDIOS have made too many mistakes and burned stories and characters too fast, stuff like Gotham Sirens, Shazam, Spiderman Far From Home, all the stuff sony is making and etc, they all look terrible and there is little chance they will not be terrible, so after those movies i mentioned i am out until something looks good, so i am feeling pretty indifferent at this point.