When you discount the Jews, you are discounting the overwhelming cultural diversity that the Jews brought to Israel as a collective. (It would be like saying "Aside from the Whites, what racial group mostly influenced the culture of the USA?).
However, the answer is that the Palestinian Arabs were the ethnic group that influenced the culture of Israel most strongly.
82% are Jewish 16% are Arabs (mostly Muslim) There are also small communities of Druze and other ethnicities.
Jewish 76.4% (of which Israel-born 67.1%, Europe/America-born 22.6%, Africa-born 5.9%, Asia-born 4.2%), non-Jewish 23.6% (mostly Arab) (data from 2004)
Brazil was influenced by Portugal due to colonization, resulting in Portuguese language and Catholic religion dominating the country. Argentina was influenced by Spain, contributing to its language, religion, and architecture. Both countries also show influences from indigenous cultures and later waves of immigration, like Italian and German in Argentina, and African in Brazil.
A social division based on shared culture mostly people belonging to the same ethnic group believe in their common descent because they have similarities of physical type culture or both they may not have the same religion or nationality for e.g :- tamilians ,french dutch etc.
Mostly people from India, although Hinduism has influenced the "new age" movement.
mostly caucasian.
mostly Sikhism
The ideas of the enlightenment mostly influenced American revolution.
Mostly Alemannic
Mexican culture is the result of a mix between the Native American civilizations living there until the 15th century -- of special importance are the Aztec and Mayan civilizations -- as well as the Spanish culture, brought by Spanish conquistadors from 1521 until Mexican independence in 1821.
India has many different ethnic groups who vary in culture. There are an abundance of "Indian" languages regularly spokes. Sri Lanka has an independent culture. There are several kinds of people but mostly, the populations is composed of Sinhalese.
Mostly the Greeks.