The verse is related to the right of the firstborn in regard to the priesthood and the coming forth of the new covenant kingdom during Christ's ministry.
This is a persecution that began with Abel and Cain. Both brought sacrifices but only Abel's was accepted. Cain was the firstborn and the right of the priesthood double blessing belonged to him but he was carnal and did not understand the order the sacrifices.
Hebrews 11:4 says, "By faith, Abel offered unto God a MORE EXCELLENT sacrifice than Cain, by which he obtained witness that he was righteous, God testifying of his GIFTS: and by it he being dead yet speaketh." (Isa 59:21) (Num 25:13)
Christ spoke on the same manner in John 8:18 when he said "I am one that beareth witness of myself, and the Father that sent me beareth witness of me." And again in John 10:25, "Jesus answered them, I told you and ye believed not: the works that I do in my Fathers's name, they bear witness of me." These gifts are set in the church as described in I Cor 12:28.
David describes that persecution in Psalms 83:14 when, because of their hatred of the righteous, the sons (violent) of of the wicked one (Mt 13:38, Jn 8:44) say, "Let us take the houses of God in possession." "The kingdom kingdom of heaven suffereth violence and the violent take it by force." To take it by force is speaking of the self willed spoke of in Jude.
Christ had come and showed them he was Messiah by his gifts and the witness of the Father. He showed them the form/order of the house/kingdom (Eze 43:11) but they were not ashamed of their self righteousness vanity as neither was Cain.
Christ told them in Luke 17:21, "the kingdom of God is within (in the midst) of you." This was the witness of the new covenant kingdom coming forth as the body of Christ, His church." Christ tells his church in Luke 6:22, Blessed are ye (Abel) when men (Cain) shall hate you, and when they shall separate you from their company (Joseph), and shall reproach you as evil, for the son of Man's (the righteous one) sake.
The violent ones in Matthew 11:12 speaks of the same self righteous ones under the defiled interpretation of the old covenant persecuting the righteous ones of the new covenant kingdom.
I John 3:15 says, "Whosoever hateth his brother (in the church), is a murderer (Cain), and ye know that no murderer (violent one) hath eternal life in him."
I John 3:12 says, "Not as Cain, who was of that wicked one, and slew his brother. And wherefore slew he him? Because his own works were evil and his brother's righteous."
As was with the prophets, apostles, and Christ, so is the kingdom today.