I do not see how you can claim that red saves everyone.
The problem clearly states that everyone survives IF something else (% of blue button) happens first.
But..IF something else happens, then only red-button pressers survive.
What IF the people who have enough huevos to press no button in a hypothetical premise just take up their nail guns (thanks,
@VeloClone) and go after those selfish reddos?
The red button pressers can also get hit by a truck right after voting. That would not bother me. They are selfish pigs to begin with.
Present company excepted, of course.