[Response to negative comments about Avengers Endgame]
A twisted shadow of Christianity rose up in the Modern period to challenge the faith it split off from. This Christian heresy has gone by a lot of names, and it changes its name frequently to disguise itself, but its core dogmas are that human nature is malleable, people can be perfected through science, policy, and economics, and that personal license must be maximized without any reference to good or evil. This heretical cult originally rose up to shake Christians from their complacency and challenge them to fight for their beliefs. Instead of fighting, most Christians chose to accommodate the heretics and lost their culture.
After winning control of the West, adherents of this heresy devoured the Christians' rich store of cultural capital until there was nothing left. That's why you felt like you were watching a disjointed series of images with no unifying story. The heretics have taken over, and since they have a purely parasitic relationship with original Christian culture, they cannot create new cultural works. They can only imitate and destroy. They are incapable of devising an original vision of their own since opposition to Christ defines them. That is why the situation in Hollywood and all other areas of the established entertainment industry can only get worse.
You might be skeptical. After all, most of the people Disney and Marvel pander to would describe themselves as irreligious. I had my doubts too, until I started asking these people to say they believe in Jesus. They could even lie if they wanted, but I made continuing the conversation dependent upon them mentioning Jesus in a positive light. To this day, none of them have taken me up on it. Every single one of them has quit the conversation rather than mention Jesus Christ in a non-disparaging manner. Again, for this explanation to be true, it's not necessary to believe in Jesus, but they clearly do--and they hate him.
Incidentally, if you want to read a sci-fi novel that doesn't assume mankind will "grow out" of religion, but instead bases its world building on projections of actual demographic and sociological trends, check out my new martial thriller Combat Frame XSeed.