Hypothetical Scenario

Every person capable of making an informed decision is given a choice. They have to choose.

They are presented with two buttons. One button is labelled "Guranteed to Live" the other is labelled, "Die Unless 4.5 Billion People Also Push This Button"

Thats it. There is no pressure or reason given to choose either button. Nothing, literally nothing, is stopping every single person offered the choice from pushing the Guranteed to Live button.

What button do you push?