It is on the ballot if the voters put it there. If the voters say “I’ll vote for you no matter what you do or don’t do about the genocide”, then it isn’t on the ballot.
Maybe I will vote for someone who is against genocide. I know they won’t win, but I will not vote for genocide. If someone told me I had to shoot one baby, or else they would shoot two babies, I still wouldn’t shoot the one baby. I can’t do anything to stop the genocide, but that doesn’t mean I have to support it.
It is on the ballot if the voters put it there. If the voters say “I’ll vote for you no matter what you do or don’t do about the genocide”, then it isn’t on the ballot.
Bur you wouldn’t be voting against genocide. Both options support it. Not voting will also reault in one of the supporters winning.
Maybe I will vote for someone who is against genocide. I know they won’t win, but I will not vote for genocide. If someone told me I had to shoot one baby, or else they would shoot two babies, I still wouldn’t shoot the one baby. I can’t do anything to stop the genocide, but that doesn’t mean I have to support it.