mainstreamism en · NOUN
Etymology
From mainstream + -ism.
Meanings
-
(uncountable) Quality of being mainstream.
So, those academics who mistrust Isabel Allende because of the mainstreamism of her work may be effectively mirroring the sentiments of Esteban Trueba with his loathing of 'la música popular' […]
1995, Philip Swanson, The New Novel in Latin America, page 167: