If as an a-millennial you think others make God's promises too earthly-minded, then you are overly spiritualizing your worldview. It's a form of Gnosticism, of denigrating the body and earth that God made us with, to imply that God finally just take us away from all this yucky physical stuff that tempts us. As if there's no mental sins. Jesus teaches us to pray for His Kingdom to come to earth, not go to heaven.
What brought all this on was an intriguing set of essays by Leithart and Trueman in First Things a few months back. Leithart asserts that the best of Protestantism is in the future, not the past. Overcoming division and error should be our vision and is our destiny in Christ. This is true.
Trueman asserts on the next page that the church should get ready for cultural exile - to be the minority in a society that doesn't take God into account in its lifestyle or policies. "Today's world is becoming a colder, harder place." This is also true.