What is the ‘great replacement theory’? A scholar of race relations explains

In less than two decades, the theory has become a major idea, with as many as 60% of the French population believing some aspects of it. According to that survey, they are worried or at least concerned that they might be replaced. In the U.K. and the U.S., close to one-third of those polled believe that white people are systematically being replaced by nonwhite immigrants. Some in the U.S. fear that America might lose its culture and identity as a result. 

 Being aware of conspiracy theories and standing up to hatred, I argue, can help societies deal with the continuing fallout of extreme xenophobia, racist rants, the rise of white supremacy and the victimization of innocent people...

https://theconversation.com/what-is-the-great-replacement-theory-a-scholar-of-race-relations-explains-224835