solving the death of our mortal bodies is one hurdle, but we'd still have to figure out to how to solve the death of our universe, although that's likely trillions+ of years off, so we'd have plenty of time to solve that little problem, although in the relative near term we'll have much less time to either refuel or somehow stabilize the sun or move out of the solar system in the next billion years or two
but on timescales that large 'we' wouldn't be human anymore, likely conquering natural selection and expediting evolution on our own terms
I want to die, why would you want to live forever?
After 1 generation of 'curing' death there will be mass overpopulation, lack of jobs, wars over resources, etc. it would be the greatest catastrophy ever, we'd need culling meaning the 1% would start deciding who dies, bla bla bla.
no more need to reproduce if we're immortal
if we can cure death we can cure the biological urge/desire to procreate
although I will admit that population control is already a problem that is approaching critical mass as-is (ie Africa/India, etc need to stop unchecked reproduction yesterday)
also, immortality means the brilliant amongst the population have more time to solve problems, and that those with slower minds have more time to learn as well