In limited space and increasing population, it would be interesting but cruel world if immortality exist in human world.
Because leader will choose survivor mode for human to control human population, you can observe it in China eg : one child policy
and people has to struggle a lot before really can achieve immortality.
Life is intersting if you keep a positive mindset and life motive isn't achieve immortality but to learn from the process and get the result.
Immortality will be meaningful if you live your life in your desirable way without hurting the society.