More importantly; What saith the scripture about Genesis 12 and 15?
Now to Abraham and to his seed were the promises made. He saith not, And to seeds, as of many; but as of one, And to thy seed, which is Christ. (Galatians 3:16).
And if ye be Christ's, then are ye Abraham's seed, and heirs according to the promise. (Galatians 3:29).
God's purpose for mankind is to obtain eternal life in the unseen spiritual world to come, not the temporal word that we can see now where no one lives forever.