In many ways it's not. However, there are some distinct differences:
(Taken from the works of Dr. Gustavo Perednik)
1. It is one of the oldest and longest running forms of racism as it still continues to this day.
2. It is universal and has existed in practically every country on earth, regardless of whether or not Jews lived there and how many Jews lived there if any.
3. It is permanent. Long after Jews were dispelled from various countries, the hatred persisted.
4. It goes deeper. The negative stereotypes are embedded in each culture. "over many centuries, millions of people believed either that the Jews transmitted leprosy, or poisoned wells to kill Christians, or used human blood for their rituals, or killed God, or have a world conspiracy, or constitute a promiscuous race, or are demoniac creatures, or, or, or...."
5. It's obsessive. "For the Judeophobe, Jews are not an enemy. They are the enemy. He does not speak of Jews; he speaks of the Jews. When Adolf Hitler gave his farewell speech to the German nation from his Berlin bunker where he committed suicide on April 30, 1945, what type of message did he convey? He did not remind his listeners of the glories of Germany, nor did he mention any regrets regarding the bloodiest of wars that he brought upon Europe -he stressed that the Jews had not been totally defeated and therefore implored that the Germans continue the struggle against their “eternal enemy.’’ Although Hitler is Judeophobia in its most extreme expression, Judeophobes share that obsession about the allegedly all-inclusive villainy of the Jews."
6. It's more dangerous. "With appalling ease this particular hatred transforms into physical violence. In most countries in which they lived, at some point in history, Jews were killed for being Jews."
7. It's based on fantasy. "Jews can be hated for having eaten non-Jews in the past, or for dominating the world in the present; for having killed God or for being the source of war, slavery or evil, or for fabricating the Holocaust."
Some Well-Known Consequences of antiSemitism:
Holocaust
Pogroms
Crusades
Inquisitions
But these are only the most famous incidents. There have been books written about this stuff. The list goes on and on. In many cases, entire Jewish neighborhoods were destroyed. In other cases, Jews were massacred, being the scapegoat for whatever terrible thing was happening at that time and place, such as being responsible for the plague or economic demise.
And to answer what you wrote to The King, anti-Judaism and anti-Semitism are both directed at the same people, thus resulting in the same devastating effects and therefore are interchangeable.
Nowadays antiZionism is the new form of antiSemitism. And there continue to be conspiracy theories directed at Jews. There continue to be racial stereotypes, wrongful blaming, Holocaust denial, and simply hatred just for the sake of it. Many people hate Jews without ever having met one.
@Salaam: Jews could just convert to Christianity?! You're in denial because you're an antiSemite yourself! Why do you keep obsessively posting question after question about this? It's because you hate Jews, and you want to paint a picture of us as a bunch of whiners who complain over nothing. Well, that's simply not true. When millions upon millions of people have been murdered over this hatred, it is indeed something worth mentioning.