Jesus was labeled "King of the Jews" on the cross b/c the Jews were mocking him, it was not out of respect.
As far as why the world hates the Jews and wants them dead, the reason is very clear.
Despite all of the evil deeds they have done since the beginning of time, I will not get into that, one need not look further then one of their holy books, the Talmud.
The Talmud teaches Jews to hate non-Jews and treat them like beasts, unhuman creatures. It teaches that its ok to steal, kill, rape, and abuse non-Jews.
Here are some quotes from the Talmud concerning non-Jews:
Cheat Non-Jews
Sanhedrin 57a. A Jew need not to pay a cuthean (gentile) the wages owed him for work.
Lie to Non-Jews
Baba Kamma 113a. Jews may use subterfuges (lies) to circumvent a Gentile.
Kill, rob and steal Non-Jew
Baba Mezia 24a. If a Jew finds an object lost by a heathen (gentile) it does not have to be returned. (Affirmed also in Baba Kamma 113b).
Sanhedrin 76a. God will not spare a Jew who marries his aughter to an old man or takes a wife for his infant son or returns a lost article to a cuthean (gentile)...
Sanhedrin 57a. When a Jew murders a gentile, there will be no death penalty. What a Jew steals from a cuthean (gentile) he may keep.
Baba Kamma 37b. The gentiles are outside the protection of the the law and God has exposed their money to Israel.
[ Remember this when you seek the advice of Jewish lawyer ]
Non-Jews are Sub-humans
Yebamoth 98a. All gentile children are animals.
Abodah Zarah 36b. Gentile girls are in a state of niddah (filth) from birth.
Baba Mezia. Jews are human beings ; the other peoples of the world are not human beings, but beasts.
Abodah Zorah 22a-22b. Non-Jews prefer do sex with cows.
Hitting a Jew deserves death
Sanhedrin 58b. If a heathen (gentile) hits a Jew, the gentile must be killed.
Preparing for a crime
Moed kattan 17a. If a Jew is tempted to do evil he should go to a city where he is not known and do the evil there.
Blasphemy against Jesus Christ
Gittin 57a. Says Jesus is being boiled in hot excrement.
Blasphemy against the blessed Mary
Jewish names for the blessed Mary in Talmud
A prostitute, and an adulterer.
Shabbath 116a. Jews must destroy the books of the Christians, i.e. the New Testament
[ Dr. Israel Shahak of Hebrew University reports that the Israelis burned hundreds of New Testament Bibles in Occupied Palestine on March 23, 1980 (cf. Jewish History, Jewish religion, p.21 ). ]