Jn 15 23 He who hates me hates my Father as well. If I had not done among them what no one else did, they would not be guilty of sin. But now they have seen these miracles, and yet they have hated both me and my Father. But this is to fulfill what is written in their Law: 'They hated me without reason.
Ps 69 4 Those who hate me without reason
outnumber the hairs of my head;
many are my enemies without cause,


We are normally taught that Jesus came to the earth in the incarnation to atone for our sin. But Jesus also come to fulfill the law.  We are taught that Jesus was hated when He was on the earth. So if Jesus was hated then we are gonna suffer the same hate. But if you study the parallel passage of  They hated me without reason" he is not teaching that He endured hate. When Jesus came to fulfill the law He had to comply with it in every thing He spoke. He had to exercise His authority of the law by correcting the abuses as He walked the earth. When Jesus taught the people He was using the law in pronouncing blessing and cursing. The Psalmist purpose in complain about the hate of his opposition was to overcome them in pronouncing.  22May the table set before them become a snare;
may it become retribution and a trap. May their eyes be darkened so they cannot see, and their backs be bent forever. Pour out your wrath on them; let your fierce anger overtake them. May their place be deserted; let there be no one to dwell in their tents.. Christ fulfilled the law by cursing the wicked rulers. Christ obeyed the Father by speaking the law, covenants, curses, statutes, promises and decrees. He pronounced blessing in the Sermon on the Mount, cursing at the Religious leaders, the decrees in healing the sick and dumb, and the promise to at the death of Lazarus.Christ was the only man who spoke the pronouncements applying them perfectly in every situation.

The hate that Christ confronted is not the same reason that we are hated. Christ had to confront the hate that rose to the level of power exercised by the Devil to destroy His soul. He had to become the curse for us so that we would not be destroyed by the Devil .This is why the Psalms pronounce the curse in order to establish Gods gracious gifts of joy, kindness, love and sorrow,anger pain and loss. He reversed the curse of sorrow , pain, loss in order so that we could push it under our feet in the pronouncements.So the kindness  cannot be turned to embellishment and anger could not be turned to self destructive hate . Satan no longer can use our corruption to destroy our soul and body. The trials we face are conquered when Christ became a curse for us. So we can push the curse under our feet.