Actually, the Jews who were fed miraculously wanted to make him king, but he did not accept this political power from humans:
4 Now the Passover, the festival of the Jews, was near. 5 When Jesus raised his eyes and saw that a large crowd was coming to him, he said to Philip: “Where will we buy bread for these people to eat?” 6 However, he was saying this to test him, for he knew what he was about to do.
7 Philip answered him: “Two hundred de·narʹi·i worth of bread is not enough for each of them to get even a little.”
8 One of his disciples, Andrew, Simon Peter’s brother, said to him: 9 “Here is a little boy who has five barley loaves and two small fish. But what are these among so many?”
10 Jesus said: “Have the people sit down.” As there was a lot of grass in that place, the men sat down there, about 5,000 in number. 11 Jesus took the bread, and after giving thanks, he distributed it to those who were sitting there; he did likewise with the small fish, and they had as much as they wanted. 12 But when they had eaten their fill, he said to his disciples: “Gather together the fragments left over, so that nothing is wasted.”
13 So they gathered them together and filled 12 baskets with fragments left over by those who had eaten from the five barley loaves.
14 When the people saw the sign he performed, they began to say: “This really is the Prophet who was to come into the world.”
15 Then Jesus, knowing that they were about to come and seize him to make him king, withdrew again to the mountain all alone.
While Jesus did not accept kingship from men, he did indicate that he was a king, to Pontius Pilate, when he was arrested:
35 Pilate replied: “I am not a Jew, am I? Your own nation and the chief priests handed you over to me. What did you do?”
36 Jesus answered: “My Kingdom is no part of this world. If my Kingdom were part of this world, my attendants would have fought that I should not be handed over to the Jews. But as it is, my Kingdom is not from this source.”
37 So Pilate said to him: “Well, then, are you a king?” Jesus answered: “You yourself are saying that I am a king. For this I have been born, and for this I have come into the world, that I should bear witness to the truth. Everyone who is on the side of the truth listens to my voice.”
So when he went to heaven, and was no longer of this world, he was not just a king,--
11 I saw heaven opened, and look! a white horse. And the one seated on it is called Faithful and True, and he judges and carries on war in righteousness.
13 and he is clothed with an outer garment stained with blood, and he is called by the name The Word of God.
16 On his outer garment, yes, on his thigh, he has a name written, King of kings and Lord of lords.
So, Jesus, the Word of God, has this elevated kingship in heaven, but one day very soon, his kingship will be expressed on the earth before humankind, at Armageddon. He will fulfill the prophecy of Daniel:
Daniel 7:13, 14
13 “I kept watching in the visions of the night, and look! with the clouds of the heavens, someone like a son of man was coming; and he gained access to the Ancient of Days, and they brought him up close before that One.
14 And to him there was given rulership, honor, and a kingdom, that the peoples, nations, and language groups should all serve him. His rulership is an everlasting rulership that will not pass away, and his kingdom will not be destroyed.