the mcu "infinite multiverse" ruined all the stakes and the importance of the heroes actions

We know the comics did it, but we also know that it generated the same problems. Death means nothing. Tony dies in our reality, and a different one—from a reality where all the other Avengers died instead of him—can be pulled into the 616 timeline if RDJ agrees to return. Same thing for Cap, Natasha, and anyone else. Wolverine did the same thing in *Deadpool & Wolverine*. Let's say Tobey dies in *Doomsday*—who cares? There are infinite versions of him in the multiverse that did the exact same things as in the Raimi movies where he survived.

The MCU should have used the multiverse like it's depicted in *Dragon Ball Super*: a finite number of different universes, with every different continuity of superheroes from past movies having its own universe. (Maybe we could even have some standalone heroes sharing a timeline, like the "Raimiverse" with Tobey living in the same universe as Bana's Hulk, Affleck's Daredevil, and Cage's Ghost Rider, as was originally intended).

And the "timelines" shouldn't be random and casual ("I woke up on the wrong side of the bed, so I created a new timeline," like in *Loki*), but instead the direct result of time travel.