nativism

Short definition from Wiktionary

Noun

1. 1
   A policy of favoring native-born inhabitants over immigrants.
2. 2
   The policy of perpetuating the culture of the natives of a colonised country.
3. 3
   A cultural element that is native to a colonised country.
4. 4
   The doctrine that some skills or abilities are innate and not learned.
5. 5
   A theory that some knowledge of grammar is innate.