ghettoismn.
/ˈɡɛtəʊɪz(ə)m/, U.S. /ˈɡɛdoʊˌɪzəm/ The fact or condition of living or existing in a ghetto (in various senses); the creation or existence of a ghetto; segregation of a particular group, community, or area of interest.
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1897 Jewish Herald (Melbourne) 14 May 170/1 Mr. Bellew knows that Ghettoism had a side of life unseen for those who lived beyond its pale.
1946 Bombay Chron. 22 Aug. 6/4 Thousands of men died in all parts of the world to destroy the very type of Ghettoism which now seems to be flourishing in South Africa.
1986 N.Y. Times 23 Nov. ii. 80/4 I don't want to see women-artist museums created around the country—that would result in the ghettoism of women artists.
2000 Indian Country Today (Nexis) 10 Jan. A sort of dysfunctional Americanism..tends to leave tribal members on reservations with an oppressive sense of ghettoism which eventually leads to nothingism.
This is a new entry (OED Third Edition, December 2022).
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n.1897