Why were governments in the early 1900's afraid of the growing influence of anarchism and socialism

 French government scared of antiwar disruptions among the syndicalists that the “Minister of the Interior, Malvy, decided to pay no attention to the Carnet B., i.e. to leave at liberty the very men who, in the government’s opinion, had convincingly established their intention to oppose war by all means." In short, the revolutionaries of the CGT had more bark than bite."