Very nice! In this setting, my position is to give up both 2 (because I don't believe moral intuition works adequately to evaluate this situation) and 3 ("complexity of value" argument: even if we do value spatially separated copies, it's not at all in the same way as we value MWI copies), while accepting 1 (for moral intuition, quantum branches are analogous to probability, where normal/classical situations are concerned).