The future will have this choice (not to revive you), and will make it against you if this turns out to be a better option, but if you don't make it to the future, you won't give it the chance of doing this particular thing (your revival) in case it turns out to be a good thing.

Again, you can't be certain of what your preference actually says in the not-clear-cut cases like this, you can't know for sure that you prefer some child to be raised in place of yourself, and for this particular question it seems to be a false dilemma, since it's likely that there will be no resource limitation of this kind, only moral optimization.