the multi-verse is wierd (also mym=make your mark)

Possible.
But what if they're in the same universe (Sunny has mane six action figures afterall) and a "planet of the apes" style cataclysm tore apart the pony tribes and various other creatures so thet quit interacting with each other?

she does, but there are upon billions upon billions different realities, and while those are mane six action figures, they might not be the mlp:fim action figures in this universe, but completely different mane six in her univere.

and even if they are in the same universe, who says that they are in the same spot? could be else where in the world.