How can we make sure Zionists are held accountable when their genocide is over?

You can’t.

If you have to ask other people whether you should be a doctor, you should not be a doctor.

“your pet issue doesn’t matter because my pet issue exists”

That’s not what this is. This is more “your civil war doesn’t matter because we’re all going die”. It’s not an “issue”, “pet” or otherwise. The fact that you think of it that way is why it’s happening.

We’re all going to die, either in wars or starving to death. Within our lifetimes. Don’t you get it?

Watching the collapse of civilisation and seeing people murder each other in the streets over food. Ha ha, silly humans.