Collectively organizing to derail the train and/or build a bridge towards the third track is the only ethical solution by the way, but it takes time and effort, so let's get started.
Image transcriptions
[a classic trolley problem]
[black, next to the lever]
A trolley is coming.
People are tied to the tracks.
As a bystander, I can do only one thing: flip a lever, which would send the trolley to another track where it would kill one single person.
[red, next to a third track]
This is a third track.
It is not connected to the other two tracks.
If you do not choose to put the trolley on the third track, then you are an evil genocide supporting liberal.
Redrawn version
Image transcriptions
[a character holds a lever connected to rails, on which a train is approaching fast]
A train is approaching fast…
Many people are tied to the tracks…
As a bystander, I can do only one thing in this current moment: flip a lever, which would send the train to another track where it would also kill people, but less of them
[next to another separate railway track, someone is trying to get the first character's attention]
Hey you, over there, look!
There is a third track here!
It is not connected to the other tracks, but there are zero people tied to it, so if you do not choose to send the train on this third track right now you are an evil genocide enabling liberal