Why do Christians hate the Romans/Jews for killing Jesus?

They are brainwashed with hatred from an early age.

Christians do not hate Romans or Jews.

They don't. The entire Roman Empire had been converted to Christianity, by the end of the 4th century. So, that point is totally moot. The Jews just can't help themselves, so Jesus will take care of that, in due time. No need for hate, in any case.

they were never taught just who, the kenites were.........they just listened to the traditions of men, which make void the Word of God, and never learned the Scriptures or the difference between the two.......AND they never used a Concordance or Bible dictionary either......

Nope.....................

We don't...Even Jesus rebuked Peter concerning this:

From that time on Jesus began to show His disciples that He must go to Jerusalem and suffer many things at the hands of the elders, chief priests, and scribes, and that He must be killed and on the third day be raised to life.

22 Peter took Him aside and began to rebuke Him. “Far be it from You, Lord!” he said. “This shall never happen to You!”

23 But Jesus turned and said to Peter, “Get behind Me, Satan! You are a stumbling block to Me. For you do not have in mind the things of God, but the things of men.”

The Bible clearly shows that Jesus asked his Father Jehovah to forgive the ancient Roman soldiers for attaching him to a torture stake for they didn't know what they were doing. On the other hand the ancient Jewish leaders put Jesus up to be executed unjustly even though Jesus proved to them he was the promised Messiah so therefore they were condemned as hypocrites and will not receive a resurrection-Psalms 83:18;Matt 27;Luke 23:32-34;Matt 23:13,37,38;Matt 24:51 jw.org

I know, right? Especially Judas. That guy should be a Bible hero.

NO WE DO NOT...GOD ALLOWED THAT FOR A PURPOSE...HIS LOVE FOR US IS AMAZING.

I don't know any Christians that hate either the Romans or the Jews.