God doesn't have control issues as we think of them, and this statement is certainly not mindless submission to God's soverignty. Far from it actually. In order for us to truly be Kingdom-dwellers, it is pretty important that we understand that what we do now has a lot to do with the future.
Jesus reminds us that God kingdom is a special kind of environment. Jesus tells us what it is like without being explicit...maybe so we can all dream about it; one thing is becoming clearer though. God values something altogether different than we do. If God valued money, we'd all be rich. If God valued material things, we'd all have the 'stuff' we want; God wants to pour out his blessings on us.
God values the people He created us to be. I think God wants us to get to know that fingerprint that He put on each of our hearts. God values the immeasurable parts of our soul. And because God gave each one of us (whether we know it or not) that fingerprint, we all have a place to belong in God's Kingdom...and that is good news.

I also don't think God is so intent on establishing a new kingdom. I think God's more interested in re-establishing the one He started in the Garden. No wall, no bounds, every piece part of the whole and every piece knows it. Think about what life in the Garden may have been like...
That's what life with God is like...
That's what the Kingdom is like...
God sets us free to be the person that He created us to be. Not some replicated Jesus drone. God wired us to be distinct and I don't think that God ever meant for us to lose our flavor.
Your Kingdome come...