1) If a multiverse consists of infinite possibilities, then shouldn't there be a universe wherein people found a way to break through the boundaries of their one single universe, and then irreparably destroy the multiverse? If so, how are we still here?
The only explanation I have there would be, maybe people somewhere else found a way to retroactively prevent it from happening, but first, that would create a cycle of "but then these people found a way to stop THAT, and then THESE people found a way to stop THIS"... and second, eventually that cycle would have to stop. Either the multiverse would be damaged to the point it couldn't be reverted back to what it was, or it would never reach that point in the first place. And if there are infinite possibilities...?
2) If the Mandela Effect is real, why does it only happen with small things we'd otherwise never notice? And yes, I'm aware of the argument that "universes near us are similar to us, the universes that are radically different are too far away to collide with us". But think about it. Take the Berenstain Bears for example. It's practically standard for names like that to end with "-stein" because that's how German surnames work. Plus it was written in cursive, so it'd be easy for people to make a mistake like that naturally. Why don't we have these minor changes in less psychologically explainable ways? Like why doesn't the word "like" suddenly change to "leke"? Why doesn't "Google" suddenly change to "Goqgle"? The lowercase "o" and "q" look similar enough that something like that should definitely be taking place.
Please note, none of the above is based on Scripture at all, it's just thoughts I've had recently and needed to get out there.