I consider ISIS as extremist not just because of the propaganda that they publish, but because of the atrocities that they are committing. Even though there cant be a perfect figure, at least we have an estimate of the number of civilians that are killed by the ISIS, and video footages of the demolition of the antique architecture of Iraq.
Its true that JW's do publish information that can be considered as extremist. In such cases, banning the publications is necessary. However, since Russia is banning the JW's altogether, does Russia have absolute data on the following issues:
1. Blood ban: How many witnesses in Russia have died due to refusal of blood transfusion?
2. Breaking families: How many people in Russia have been affected by the disfellowshipping offence? If not an actual figure, has Russia documented the stories of such people and investigated all the cases where accusations were made of families getting torn apart due to JW teachings?
3. Fostering hatred: Has Russia tried to document cases where this has happened? Have they provided video footage of the meetings or assemblies to the public to show that hatred is propagated from the stage?
Russia needs to make the world aware with proper facts and cases.
If the publication is extremist, publish the quotes to the public and ban the publication.
If people are extremist, document the cases to the public and then ban them.