Why isn't the idea of creating heaven more popular? When the singularity occurs, someone will have nigh-infinite creative capacity at their disposal. Creating a supercomputer with a billion galaxies worth of fuel that emulates a new, vastly more enjoyable reality is one of the possibilities.
Sure, some people believe the afterlife is already sorted for them, but what about all the atheists? If they thought carefully, they'd realise that interstellar civilisations could never work: They'd inevitably become dystopian, assuming they survive long enough to.
A heaven-computer though could have fixed rules, or rules controlled by a benevolent AI, rules that can keep humans happy for trillions of years. It's an everybody-wins-as-much-as-it-is-possible-to-win scenario, rather than the win-lose scenarios most people would probably come up with if they were given the creative power the singularity would offer.