I don't know if it's a laudable goal, but I think it'll eventually be possible.
If you asked me several years ago I would have said "yes, the star trek future is at least partially attainable", but that requires a lot of optimism in technological advancement that I don't have. I do think that with the technology and resources available to us today (or the near future) we could support 10 billion people working safe labor in air conditioning, full stomachs, free time, and on a planet that is still hospitable.
If you want to know how to actually get there: I have no idea, but I do know if we don't agree on the direction and make steps towards it continuously for many generations that we'll never get there. For now I'm voting with my feet and contributing my labor to a cause I think pushes us in the right direction.
Also, I'm setting aside the battle with natural death. Preserving brains and their contents indefinitely is not impossible, but transhumanism is as much philosophy as it is technology.
I grant that not all care given to aged is a kindness, but not fighting aging is not virtuous.