system
Given the following post, respond as if you're commenting on Reddit:
human
Eli5 : Why are Jews so hated throughout history?
gpt
Its pretty complicated, and varies depending on which period of time, and what group of people you're talking about, but essentially, it all boils down to the fact that Jews have always been an easy scapegoat throughout history. There are several reasons why. 

1) Unlike Christianity, Judaism is not a proselytizing religion.  What that means is that Jews don't actively try to convert other people to their religion, and in fact, try to dissuade others from converting to Judaism. For that reason, Judaism has spread far slower than the other Abrahamic religions, so they have always been a minority in recent eras. Minorities are inherently easy to pick on, because generally they don't have the strength in numbers to fight back.  So whenever a group of people had some sort of societal problem, whether with the economy or otherwise...the go to excuse became, "blame the Jews"...and in most cases, the Jews couldn't do anything about it.   **Edit** To give you some perspective, there are just 22 million Jews in the world, compared to over 2.18 billion Christians, and 2.08 billion Muslims. When you think about the huge gap between those numbers, it seems a lot more crazy how much animosity towards them exists in the world.

2)They have also generally been especially difficult to convert to Christianity, which obviously pissed off Church leaders who saw them as a threat to their gaining total power. In early days, they were viewed as particularly difficult to control & keep under systems of theistic rule. Thus, the powerful religious leaders of the time spread a lot of lies and fear about them to ignorant masses. Many of those rumors have stuck around throughout the ages in one form or another.

3) Some branches of Christianity pushed the idea that Jews were directly responsible for the death of Jesus (even though most biblical scholars acknowledge it was the Romans).  

4) Jews typically have had a strong sense of tradition, family, & dedication to work & education. All of this allowed them to excel at trade & business, while maintaining some insular/"isolationist" tendencies. Eventually they became some of the most powerful business leaders around the world. The fact that such a small minority of people held so much financial power, caused some non jews to distrust them, and also made them an easy scapegoat for any country or group of people with financial woes. 

5) Also along the theme of insularity, since Judaism is non-proselytizing, the only way to keep the religion going is for Jews to marry other Jews & raise their children Jewish. For that reason, in a lot of countries they never really fully integrated with other groups of people, so everyone else generally saw them as outsiders. People naturally don't trust outsiders living among them. 

6) The whole arab/palestine/Jurusalem/Israel clusterfuck is why most Muslims hate them.