Youngmaf is spot-on. They lose their status as refugees if they fail to present themselves to the authorities in the first safe country they encounter. France is a safe country (if not exactly th eone they'd prefer). From the UN Convention on the status of refugees:
Article 31 (Refugees unlawfully in the country of refuge)
1. The Contracting States shall not impose penalties, on account of their illegal entry or presence, on refugees who, coming directly from a territory where their life or freedom was threatened in the sense of article 1, enter or are present in their territory without authorization, provided they present themselves without delay to the authorities and show good cause for their illegal entry or presence.
Those in France have not come directly from a country where they were under threat. Hence they are not refugees but simply chancers.