I'm Jewish and I used to not understand antisemitism at all. Now I get it. Without antisemitism or without Jews, all the same things would basically still exist in the same ways, just reframed slightly. Many humans just aren't very good at reasoning, and throughout history humans have used scapegoats as a way to feel more relieved about negative things they experience or see. Some more than others: it's not a coincidence that people tend to either believe in 0 conspiracy theories of 50+ of them, with nothing in between.
Also, it's more fun to have enemies, I guess.
