Firebombing and burning 100,000 civilians to death in one night or Nuclear bombing and vaporizing 70,000 citizens in an instant?

US sanctions killing 500,000 people a year for 50 years now, or creating a chemical that has poisoned everyone on the planet?

Spreading fascism to every place in the world, or causing global warming which will displace billions of people?

I am going to need more from you to go on.