Because Jews are parasitical.

Think about it. When you have immigrants, it can be a great thing. They assimilate and become one people. Jews have no respect for the host nation they immigrate to. Their ideas are always better. So instead of assimilating, they seek the halls of power and influence, in media, banking and government. This leads to drastic cultural change. A prime example of that is the United States. If you ask someone today what the US is all about, they will tell you that we are a melting pot of cultures. That is simply not true. That is a blatantly Jewish invention. The United States culture was created, as Benjamin Franklin said, as a culture of freedom. They were skeptical of immigration, preferring the country to fill out naturally and those that do come were to be white men of good moral character. Multiculturalism is not an American ideal. We have veered far away from Americanism and that’s largely because of Jewish influence. Meanwhile, they largely keep their culture the same, hire within their own ethnic and religious group, networking to keep themselves in power. These are not the actions of a group that want to assimilate and become American, but the actions of someone who wants to rule Americans. It’s a long pattern from Jews over a very long period of time. I see it as a soft form of colonialism. They push for the same thing from other ethnicities, like Hispanics, in larger numbers to disguise their own. 

When they didn’t have their own country, it was understandable. Now they do, so there is no longer an excuse for it, except as a way to grab power from more successful people.