In fact, the Jews' unpopularity is caused by historical reasons, mainly in religious issues, regional issues and economic issues.

Historically, Christianity is anti-Semitic, which starts with the death of Jesus. Jesus is the founder of Christianity. In order to save mankind, he will come to the world and recruit twelve disciples to preach in various places, including Jewish areas. Jews have their own religious beliefs, and the teachings preached by Jesus violate the tradition of Judaism, which has set off a struggle between the two religions.

Judaism was dissatisfied with Jesus' behavior, so it arrested him and finally crucified him. As the savior of Christianity, the departure of Jesus made Christians very angry and thought that the behavior of Jews was unforgivable. Later, when looking for the cause of Jesus' death, Judas, a disciple of Jesus, was exposed. Because Judas was a Jew, the descendants of Judas should bear the price for Jesus' death.

Therefore, there is a conflict between the religions of Europeans and Jews. Europeans believe in Christianity, while Jews believe in Judaism. There is a fundamental conflict between Christianity and Judaism. Because the two sides have different doctrines, and according to Christian teachings, Judaism should not exist, so they hate Jews who believe in Judaism.

Besides, Europeans and Jews are very exclusive. Jews originally did not belong to Europe. They used to live in Asia, so they are outsiders to Europeans. Europeans reject outsiders and naturally cannot tolerate Jews.

It happens that Jews are strikingly similar to Europeans at this point, and Jews are also extremely repulsive to foreigners. They don't allow their own people to marry foreigners. Since both sides are repulsive to each other, they are naturally incompatible with each other. And Jews have a high IQ, are quite smart and are good at doing business, which is not good for people in other countries in the world. It is for many reasons that Jews are unpopular.