Of course, Rick and Morty fans could also take Dan Harmon’s bemused willingness to green-light this idea as another clear sign that there are no concrete plans for the Adult Swim show to go full-hog on extended serialized arcs and continuity.
If it were the real world, probably, but not so much here.
After all, it seems entirely possible that by the end of “Mortiplicity” that the real Smith family died somewhere in all the chaos, as it was heavily established that the decoys are unaware that they’re decoys.
But if every copy retained all the memories of the “original” family, comprised of another dimension’s Rick and Morty living amongst the Smith family of another Earth, would it really make a difference if they were organic humans or not?