The world is ending, and people will always react the same way: in fear, in anger that they have not reached the happiness they are entitled to. Humans are always in pursuit of fulfilling their wishes: a selfish existance, no matter the wish, used to appease the self more than anything, no matter what philanthropic means they claim. This is the second and last chance for many people, and to have the possibility wrenched from their hands... it would be surprising to see any other reaction.
In every lifetime we live (and there are many), the wish never changes. Some of them are impossible to grant, but even that doesn't stop us. We pursue on blindly, in hopes that one day we will find the way to discover true happiness. To fulfill our wish.
It is from despair, after all, that hope is born.
You cannot let this world beat you, nor the next, nor the next. This is your destiny: take charge of it.
Lelouch, are you planning to save the world?