Answer the question at the end by quoting:

The French (French: Francais) are an ethnic group and nation who are identified with the country of France. This connection may be legal, historical, or cultural. Historically the French people's heritage is diverse, including populations of Gauls, Ligures, Latins, Franks, Iberians, Alamans and Norsemen. France has long been a patchwork of local customs and regional differences, and while most French people still speak the French language as their mother tongue, languages like Norman, Occitan, Catalan, Auvergnat, Corsican, Basque, French Flemish, Lorraine Franconian, Alsatian and Breton remain spoken in their respective regions.
In France, the conception of citizenship teeters between universalism and multiculturalism, especially in recent years. French citizenship has been defined for a long time by three factors: integration, individual adherence, and the primacy of the soil (jus soli). Political integration (which includes but is not limited to racial integration) is based on voluntary policies which aims at creating a common identity, and the interiorization by each individual of a common cultural and historic legacy. Since in France, the state preceded the nation, voluntary policies have taken an important place in the creation of this common cultural identity.  On the other hand, the interiorization of a common legacy is a slow process, which B. Villalba compares to acculturation. According to him, "integration is therefore the result of a double will: the nation's will to create a common culture for all members of the nation, and the communities' will living in the nation to recognize the legitimacy of this common culture". Villalba warns against confusing recent processes of integration (related to the so-called "second generation immigrants", who are subject to discrimination), with older processes which have made modern France. Villalba thus shows that any democratic nation characterize itself by its project of transcending all forms of particular memberships (whether biological - or seen as such, ethnic, historic, economic, social, religious or cultural). The citizen thus emancipates himself from the particularisms of identity which characterize himself to attain a more "universal" dimension. He is a citizen, before being a member of a community or of a social class  Therefore, according to Villalba, "a democratic nation is, by definition, multicultural as it gathers various populations, which differs by their regional origins (Auvergnats, Bretons, Corsicans or Lorrains...), their national origins (immigrant, son or grandson of an immigrant), or religious origins (Catholics, Protestants, Jews, Muslims, Agnostics or Atheists...)."

Were the French people into Multiculturalism?

the conception of citizenship teeters between universalism and multiculturalism,

IN: Bobby Darin (born Walden Robert Cassotto; May 14, 1936 - December 20, 1973) was an American singer, songwriter, multi-instrumentalist, and actor in film and television. He performed jazz, pop, rock and roll, folk, swing, and country music. He started his career as a songwriter for Connie Francis.

Born Walden Robert Cassotto in the East Harlem neighborhood of New York City, Bobby Darin was reared by his maternal grandmother, whom he believed was his mother. Darin's birth mother, Vanina Juliette "Nina" Cassotto (born November 30, 1917), became pregnant with him in the summer of 1935 when she was 17. Presumably because of the scandalous nature of out-of-wedlock pregnancies in that era, Nina and her mother hatched a plan to pass her baby off as Nina's younger brother. Years later, when Nina finally told Darin the truth about his upbringing, she refused to reveal the identity of his biological father, and kept the secret to her death in 1983. Darin's maternal grandfather, Saverio Antonio "Big Sam Curly" Cassotto (born January 26, 1882), was of Italian descent and a would-be mobster who died in prison from pneumonia a year before Darin's birth. His maternal grandmother, Vivian Fern Walden (also born in 1882), who called herself Polly, was of English ancestry and a vaudeville singer. From his birth, Darin always believed Nina to be his older sister and Polly his mother. But in 1968, when he was 32, Nina told Darin the truth, reportedly devastating him.  By the time he was a teenager, Darin could play several instruments, including piano, drums, and guitar. He later added harmonica and xylophone.  Darin moved to the Bronx early in his life (with a rented summer home in Staten Island) and graduated from the prestigious Bronx High School of Science. In later years he attributed his arrogance to his experiences there, where he was surrounded by brighter students who teased him. He then enrolled at Hunter College and soon gravitated to the drama department. After only two semesters, he dropped out to pursue an acting career.

How was his relationship with his biological mother?

OUT:
Darin always believed Nina to be his older sister and Polly his mother. But in 1968, when he was 32, Nina told Darin the truth, reportedly devastating him.