There has been an anti-masonic manifestation before the lodge of Paris the friday before as well.
The socialist regime appears to take the mobilisation going on in France seriously, because they have been trying to downplay it's numbers through the media, and they had been holding back thousands from reaching the place of the manifestation on sunday by blocking buses before Paris, closing train stations and through interpellations by the police of many individuals who were going to it.
Yet, not one incident of vandalism was, as far as I know, wrought by the manifestants. In contrast, football hooligans had been wrecking the city very recently and virtually nothing was done against them by the police, which means that they are practically favouring violent troublemakers in the streets before people who are against unnatural vice and the destruction of the family which follows from it.
By the way, at least 500 000 people were expected by public transport companies, which is the double of the number that is mentioned in what you have posted.