Doug's position is about the idea that Jesus' Kingdom has already come on earth today. There are some Churches that deny any literal future Kingdom by Christ, which is sad because God's Word reveals much about Christ's future literal Kingdom being established on a future earth in the physical sense. The real danger of their man-made doctrine about today being Christ's Kingdom already established in full, is how Satan's servants can then trick the deceived into accepting the things and ways of this... world today as Christ's Kingdom. Yet our Lord Jesus said His Kingdom was not of THIS world, meaning this present world time (John 18:36).
Our Lord Jesus was speaking of His 1st coming. They rejected Him, so His Kingdom of Israel was not then established. Yet per Acts 1 His Apostles knew it was prophesied to happen. And, since our Lord promised His 12 Apostles would each sit upon a throne judging the 12 tribes of Israel, we know the kingdom of Israel is to be established as His future Kingdom to come. Suggestions to the contrary have no Biblical foundation.
The meaning of Luke 10:10-11 is about presenting The Gospel and it being rejected. It did not mean Christ's Kingdom was then literally established in that time.
In the very next verses after Luke 19:11, Jesus gave His disciples a parable about Himself as a nobleman that went into a far country to receive a kingdom, and to return. He called his servants, gave them ten pounds and told to occupy until he returned. Then when he returned he discovered what servant was profitable with what he entrusted to them, and one was not. That is about Christ's future return to receive His Kingdom at His 2nd coming. So right there, with just a little bit more reading in Luke 19, we discover by our Lord's parable how He meant His Kingdom, and its timing. Basically it is this...
Those in Christ have the Promise of His Salvation, and thus His Kingdom is spiritually manifest here on earth through His servants, and they are to be stewards, bringing forth fruit in The Gospel. At His 2nd coming is when He will take David's throne and rule in His literal Kingdom here on earth, with His elect. That is when He will receive a report from His servant's work, like the parable He gave in Luke 19 shows.
In that Luke 17:24 passage, Jesus was talking about the day of His 2nd coming. He gave HOW He returns in contrast to false Christs some will say is Jesus. Our Lord said His coming will be like how lightning shines from one part of the sky across to the other part of the sky, easy to see. Every eye will see His 2nd coming He said in Rev.1. He was not saying to expect a visible kingdom with that idea. He was only giving a metaphor for how everyone will know His 2nd coming.
It's actually about more than that. His Church is there in Jerusalem on earth reigning with Him too. His Kingdom is the Kingdom of Israel. The name Israel God gave to Jacob represents The Gospel. It means to overcome with God's help. It's the salvation name that represents the Promise first given Abraham by Faith (Galatians 3; Romans 4).
No, Jesus is NOT... today in the midst of Israel by what God's Word is showing that you quoted. See Psalms 2. It is about Jesus literally... sitting over His Kingdom of Israel on earth in Jerusalem, upon Mount Zion, when He returns in the near future.