[1] Grossman insisted that conditions in the Russian Empire compelled the movement to conduct "direct, illegal, revolutionary means of warfare" against the Tsarist autocracy, which he believed would end in mass expropriation, rather than a French-style general strike.
Grossman believed that the coming anarchist revolution would destroy all aspects of the existing social structure, including trade unions, in what he called a "total and radical negation of all the foundations of the present system.
He actively criticised Hegelians and Marxists for their "impersonal rationalism", declaring that:[5] An idea must not be left to pure understanding, must not be apprehended by reason alone, but must be converted into feeling, must be soaked in "the nerves' juices and the heart's blood."
[...] We do not belong to the worshipers of "all that is real is rational"; we do not recognize the inevitability of social phenomena; we regard with skepticism the scientific value of many so-called laws of sociology.In late 1907, he returned to Ukraine in order to establish a network of anarchist communist "battle detachment", himself leading a branch in Katerynoslav.
[6] After his death, Juda Grossman took up his brother's polemical opposition to syndicalism in the magazine Buntar, writing that syndicalists focused to much on seeking workplace reforms for skilled laborers while neglecting the "downtrodden majority.