Earlier quoted context omitted.
Tobacco has killed more people so far. Facebook accepted a lot of money to help Trump win, so if he were to start a war or something, I think the blood would also be on Facebook's hands. Climate change is a whole other issue with him, though less direct. Also, I understand the headline to be a comparison of tactics, not of harm. And as for the share button, writers don't make their site's templates.
Facebook accepted more money from the Clinton campaign though right?
Helping a politician who ends up killing people is arguably helping to kill those people, whether you're a voter or an ad firm or IBM in the 40s.