I am currently studying Arabic in university and have the following question:
If it is known that the Arabic Language Studies department at a particular school is vehemently anti-Israel and anti-Semitic (which are somewhat in vogue these days), and that in the past, openly religious Jews who have tried to go far in the study of the language have not done well and have "mysteriously" gotten poor grades (which have discouraged them from continuing their study of Arabic), may one present themselves, upon entering their study in the department, with an Arabic name and instead of a kippah wear a kufi (of a style not necessarily unique to Muslims), wear their ssissith in, and on holidays wish their teacher and fellow students "Eid Mubarak" (Arabic for "happy holiday") if the intent of all of this is merely to allow them to assume that such a person is a Muslim?
According to Jewish law may one allow the Arab staff of a university and their classmates to incorrectly assume that they are a Muslim in order to protect their GPA, especially if they never directly say that they are a Muslim? Have Jews in history ever allowed Muslims in their societies to believe that they were Muslims in order to protect themselves from potential loss? Are there any sources that discuss this?
Thanks. Kol tuv.