Seems to under-describe what’s being asked for. You should vote for them *because* their perpetration of the killing makes a worse killing less likely. The vote isn’t just for

some other good stuff they might do while committing a slightly smaller genocide than might be expected; rather, the invitation is to vote for them because they’ll perpetrate the smaller one.

That looks a lot like an invitation to vote for a genocidaire because they’re a genocidaire (if also a slightly less bad one than an actual or hypothetical other one).