Since 2010 Camus has been warning of the purported danger of the " Great Replacement " ( Grand Remplacement ) , the supposed replacement of White French Catholics and White Christian Europeans with Arab , Berber , and Black Muslim immigrants from the Middle East and North Africa . The theory was cited by white nationalist Lauren Southern of Canada for a video of the same name released in July 2017 and it is a key ideological component of Identitarianism a strand of white nationalism that originated in France and had since spread to Europe , North America ( United States and Canada ) , Australia , and New Zealand . It was also the name of a manifesto by Brenton Harrison Tarrant , the Australia-born perpetrator of the Christchurch mosque shootings at Al Noor Mosque and Linwood Islamic Centre in Christchurch , New Zealand that killed 51 and injured 50
Christchurch mosque shootings
Christchurch mosque shootings
Renaud Camus