the ideology of purism 純粋主義／純血主義のイデオロギー
This is the sets of beliefs, norms and values that one variety of language is more pure or has greater value than other varieties - in other words, that one variety is "good" or "correct" while other varieties are "poor" or "inferior"...
Purism has a strong power of evaluation and may be associated with the perception that a particular variety is threatened, endangered, or risks dying out. However, the ideology of purism is not just about language. It is often connected to practices that have negative impacts for particular groups of people. Ideologies of language purism may be closely associated with nationalism, as well as conservative political and/or religious views of the world.
According to Weber and Horner (2012), linguistic purism movements tend to become active "at times of rapid social change" (p. 20) and may focus on targeting "non-standard" or "foreign" elements in language use.
(1) This 2011 Guardian article "Mind your language: German linguists oppose influx of English words" presents different perspectives about purism. After reading the article, which of these positions do you identify with? Why?
A. "We have a special responsibility to protect our language because it is a language of particular cultural importance. Our language is our expression of our culture and we have a duty to nurture it and ensure its future development."
B. "We don't see English as the enemy. We're of the opinion that English can enrich our language, just as many other languages, for example French and Latin, have influenced our language over history."
Other sources
Quartz (17 December 2017). The world has a brand-new language, and it’s a win for nationalists. https://qz.com/1158964/montenegrin-the-world-has-a-brand-new-language-and-its-a-win-for-nationalists/
South China Morning Post (9 October 2013). South Korea calls for ‘language purification’ campaign on Korean alphabet day. http://www.scmp.com/news/asia/article/1327889/south-korea-calls-language-purification-campaign-korean-alphabet-day
The Guardian (14 March 2011). Mind your language: German linguists oppose influx of English words. https://www.theguardian.com/world/2011/mar/14/german-language-anglicisms-challenge
Weber, J-J., & Horner, K. (2012). Introducing multilingualism: A social approach. London: Routledge.