Do you think Jesus was right saying the kingdom arrived with him agreeing with Daniel? Or were those expecting a physical kingdom correct in saying it did not, thinking Daniel and Jesus had it wrong? Being physical and yet to come?
Another way to look at it is...
What is a kingdom but the reign of its king? Wherever a king is so goes his kingdom, as he is its government.
The Messiah, their prophesied king, was standing right in front of them...physically...but they didn't recognize Him. The kingdom was physically their in full authority on earth.
The physically sick were truly healed...
The physically dead were truly raised...
Other physical signs like real water turning to wine, real bread was multiplied, the physical weather obeyed Him, a life-long blind man could see, etc, all physically happened.
The King also had full authority in heaven (spiritual) by casting out spiritual demons, and forgiving sins.
All authority has been given to Him in heaven (spiritual) and on earth (physical). The Messiah is the kingdom.
...So the kingdom had come and was in their midst, but the pharisees were blinded to Him because of the veil of His flesh (i.e. being a humble, sweaty, carpenter). But He said there would be those who wouldn't taste death until they saw Him in His kingdom...so the very next scene we're given is the transfiguration where the Messiah is displayed shining in glory along with Moses and Elijah for Peter, James and John to witness.
That's the promised kingdom we're waiting for; for that vision to be fulfilled in full glory. No sun will be needed and no night will be experienced. Believers will be walking, talking burning bushes.
Daniel 12:3
And they that be wise shall shine as the brightness of the firmament; and they that turn many to righteousness as the stars for ever and ever.
Matthew 13:43
Then shall the righteous shine forth as the sun in the kingdom of their Father. Who hath ears to hear, let him hear.
Exodus 34:29-30
29 Now it was so, when Moses came down from Mount Sinai (and the two tablets of the Testimony were in Moses’ hand when he came down from the mountain), that Moses did not know that the skin of his face shone while he talked with Him. 30 So when Aaron and all the children of Israel saw Moses, behold, the skin of his face shone, and they were afraid to come near him.
But the kingdom suffered violence and the violent to [Him] by force...and then crucified Him.