Wikipedia
Eurabia is a political neologism, a portmanteau of Europe and Arabia. It was first used as a name for the newsletter of a Euro-Arab friendship committee in the 1970s. The concept was coined by Bat Ye'or in the early 2000s. Bat Ye'or (pen name of Gisele Littman) claims a conspiracy of globalist elements, allegedly led by French and Arab powers, to Islamise and Arabise Europe, thereby weakening its existing culture and undermining an alleged previous alignment with the U.S. and Israel.
The term has gained some public interest and has been used and discussed across a wide range of the political spectrum, including far-right activists, counter-jihadis and different sorts of antiislamist and conservative activists. Bat Ye'or’s “Mother conspiracy theory” has been used for further subtheories. The narrative grew important in expressing anti-Islamic sentiments and was used by movements like Stop Islamisation of Europe.
Eurabia is also discussed in classical anti-Europeanism, a strong influence in the culture of the United States and in the notion of American exceptionalism, which sometimes sees Europe on the decline or as a rising rival power, or, as is the case here, both.