The comparison to Jesus here is very inaccurate. Jesus wasn’t just a nice and caring guy; among other nice and caring guys.
Jesus came to save individual souls that accept Him as God and Savior. The individual can be Gentile or Jew. But it is an individual endeavor. It’s not a one-shot deal for “humanity.”
While the invitation to eternal life with Him is extended to all of humanity, we each have free will, and many choose to reject it and Him.
Jesus did not come for the improvement of our material conditions.
Not only was His own human life a testament to this, but He said to sell everything (detach from the material) to follow Him so that you can save that which is far superior to anything material; your soul.
Not matter what material conditions we have, we’re always stuck with the primary problem that no material condition can solve — sin.
Everything material we will leave behind, and leave the world as we came into it, with nothing.
While there is nothing wrong with a multiplanetary existence for humans (if God allows it) that is far from the ultimate goal. Living on another planet is just another material achievement which will immediately start to lose value in our minds once it’s achieved.
The Promised Land is not a PHYSICAL place or piece of land (modern day “Christian” Zionists are extremely misled, and the genocidal results prove their errors). Nor is it a piece of land out in space.
The Promised Land is Heaven…no matter how many planets we happen to inhabit before the end of time.
But we each individually have to choose it. So the best we can do for “humanity” is to encourage as many individuals as we can — to choose it, and Him.
