Designed as a cult of personality, the organization was labeled a sect or nicknamed the "Church of Sidology" by competing far right groups, while its adherents highlighted the discipline and determination allowed by their organizational structure. Sidos was recognized by L'Œuvre adherents as the "future guide for the people and the nation." Far from being a mass party, the organization had 20 members at its creation, around 50 a decade later, and around 400 at the time of its dissolution in 2013. Political scientist Jean-Yves Camus explains the large media coverage compared to the size of the group by an "excellent communication from the leadership".
