Holy fucking shit... We've looped back around with the trolley problem memes to end up back at the actual trolley problem.
The entire reason the trolley problem is a "problem" is because it's not necessarily morally correct to insert yourself into a problem in order to save people, if by doing so you also condemn someone. It's debated that it's better to let an unfortunate scenario in which multiple people die play out - allowing yourself to stay out of the picture and not be responsible - than to take action to minimize the damage, and by doing so become part of the picture and partly responsible for the damage that does occur.
It's supposed to be a difficult situation, even if taking action saves lives, because by taking action you are specifically partially responsible as an acting member in the scenario. There are a lot of people who believe that it's better to stay out of it and leave yourself morally untouched for having never taken part in it than to take action, even if the action would save lives. And there are a lot of people who believe that it's better to take action if you can, especially if it saves lives, even if your actions still condemn people to death.
The whole point is that it's NOT a scenario with a correct answer. The best answer is the one that lets you sleep at night. Yes, I'll be voting democrat, but I certainly don't blame those who believe dirtying your hands by voting for a genocide supporter is an unacceptable act.