If we can't make a good case against them on basis that they are, at the core, socialist / Marxist, communist or fascist (commune, communal, community and communism have the same root word commun - to share), then we are hopelessly lost in the fight of ideas and ideological war.
Let's point out, mock and ridicule the fact that what they are trying to peddle to the masses has already been tried and miserably failed every time, everywhere, on every level, in every aspect. Let them defend the already discredited societies and ideologies instead of hiding behind various differently painted but well recycled slogans of Liberté, Egalité, Fraternité type.
BTTT.....(where is CutePuppy?)