The Jewish people, since they appear in the history seem to have lot of problems with the other people that lived around them, often being persecuted or enslaved.
Initially they have been enslaved by the Egyptians and were not in nice relations with them, saving themselves by the scratch, but ending up in a desert. After they settled in what is now Israel, they have been conquered by the Assyrians, and since they were rebellious, the Assyrians systemically misplaced them out of their homeland. After that came the Romans, and it was similar, as part of them was again moved forcefully in other places of the empire. The Muslim Caliphates showed no mercy toward them, and they were terrorized and forced to move away. Then they had troubles in Europe as well, especially with the Spanish inquisition where they were burned alive publicly or killed without any mercy.
The correct answer to this open question is the following.
In my opinion, both major parties, Democrats & Republicans, eliminate third parties and their agendas because they exert dominant control over third parties and their candidates in that it is too much money Democrats and Republicans collect via donations from their followers. This money is used to organize and operate the political campaigns and buy all kinds of advertising through traditional media and social media. Third parties do not the money and infrastructure to represent a real threat to those two established and traditional parties in the United States. Among the third parties that have competed in US elections of the past, we find the Whig Party, Federalist Party, and National Republican Party, Populist Party, and Progressive Party.
There were two parties in China after World War 2: the Nationalists and the Communists. The Nationalists were led by Chiang Kai Shek, and the Communists were led by … Mao Ze Dong. The Communists defeated the Nationalists, and Chiang Kai Shek fled to Taiwan to set up a government there.