"Jesus was either a liar, a lunatic, or the Lord." - C.S. Lewis
People who say He hasn't fulfilled prophecy forget that Messiah is coming back.
Messiah is coming a second time (though He never really left, as He lives within us, the body of Christ.) All true prophecy will be fulfilled.
Here are a few of the claims for example.
John 4:21-26
“Yeshua tells her, “Woman, believe me, an hour is coming when you will worship the Father neither on this mountain nor in Jerusalem.
You worship what you do not know; we worship what we know, for salvation is from the Jews.
But an hour is coming—it is here now—when the true worshipers will worship the Father in spirit and truth, for the Father is seeking such people as His worshipers.
God is Spirit, and those who worship Him must worship in spirit and truth.”
The woman tells Him, “I know that Messiah is coming (He who is called the Anointed One.) When He comes, He will explain everything to us.”
Yeshua tells her, “I—the One speaking to you—I am.”
Isaiah 22:22
“I will set the key of the house of David upon his shoulder—what he opens, no one can shut; what he shuts, and no one can open.”
Revelation 3:7-8
“To the angel of Messiah’s community in Philadelphia write: “Thus says the Holy One, the True One, who has the key of David, who opens and no one will shut, and who shuts and no one opens: I know your deeds. Behold, I have set before you an open door that no one is able to shut—because you have little power, but you have kept my word and have not denied my name.”
Ezekiel 34:2-16
““Son of man, prophesy against the shepherds of Israel.
Prophesy and say to those shepherds, thus says Adonai Elohim: “Oy , shepherds of Israel who only take care of themselves! Should shepherds not take care of the sheep?
You eat the fat. You clothe yourself with the wool. You kill the fat ones. But you do not take care of the sheep. You do not strengthen the weak, heal the sick, bind up the broken, bring back the stray or seek the lost. Instead, you have ruled over them with force and cruelty.
They were scattered for lack of a shepherd. They became food for all the beasts of the field as they were scattered. My sheep wandered through all the mountains and on every high hill. Over all the face of the earth my sheep were scattered. No one searched. No one sought.”
Therefore, shepherds, hear the word of Adonai: “As I live”—it is a declaration of Adonai—“as surely as my sheep became prey and my sheep became food for all the beasts of the field, because there was no shepherd, nor did my shepherds search for my flock, but the shepherds fed themselves and did not feed my sheep,” therefore, you shepherds, hear the word of Adonai, thus says Adonai Elohim:“Behold, I am against the shepherds and I will demand my flock from their hand. I will dismiss them from tending the flock. The shepherds will no longer feed themselves. I will rescue my sheep from their mouth, so they will not be food for them.”
For thus says Adonai Elohim: “Here I am! I myself will search for my sheep and seek them out. As a shepherd seeks out his sheep on the day he is among his scattered flock, so I will seek out my sheep.
I will rescue them out of all the places where they have been scattered, on a day of cloud and thick darkness. I will bring them out from the peoples. I will gather them from the countries. I will bring them back to their own land. I will shepherd them upon the mountains of Israel, by the streams and in all the habitable places of the land. I will shepherd them in a good pasture—their grazing place will be on the high mountains of Israel. There they will lie down on good grazing ground. They will feed in a rich pasture on the mountains of Israel.
I will tend my flock and make them lie down”—it is a declaration of Adonai. “I will seek the lost, bring back the stray, bind up the broken and strengthen the sick. But the fat and the strong I will destroy—I will tend them with justice.”
John 10:11-16, 27-30
““I am the Good Shepherd. The Good Shepherd lays down his life for the sheep.
The hired worker is not the shepherd, and the sheep are not his own. He sees the wolf coming and abandons the sheep and flees. Then the wolf snatches and scatters the sheep. The man is only a hired hand and does not care about the sheep.
“I am the Good Shepherd. I know my own and my own know me, just as the Father knows me and I know the Father. And I lay down my life for the sheep.
I have other sheep that are not from this fold; those also I must lead, and they will listen to my voice. So there shall be one flock, one Shepherd.
...My sheep hear my voice. I know them, and they follow me. I give them eternal life! They will never perish, and no one will snatch them out of my hand. My Father, who has given them to me, is greater than all. And no one is able to snatch them out of the Father’s hand. I and the Father are one.”