What does the far right mean when it uses the term "remigration"?

On October 31, a conference on "remigration" organized by the far-right group "Objectif remigration" and a related demonstration were canceled by prefectural orders at the request of the Minister of the Interior. This decision came a day after the discovery of "Remigration" graffiti in Paris. The video discusses the use of the term "remigration" by various European far-right parties.