In Defense of Lost Causes is available from Amazon in paperback for $20.99, and on Kindle for $9.99. Dr. Zizek has a lot of books available on Amazon.com, so contrary to being banned you can have a copy in your hands tomorrow thanks to capitalism. Slovenia his home country has the wealthiest GDP per capita of all of the Slavic nations, and Zizek was involved in electoral politics there around the time of independence. Since he lives in a developed European democracy, the good doctor can say or write anything as outrageous as he likes, like when he supported Trump for President, and there is no real consequence, just publicity. So as a revolutionary he is certainly more of a talker than a doer. The dude was married to a fashion model, who probably didn't want to hide out in a tent.

It is easy to support violence when you are not someone that will actually be shot at or tortured, or have to see your family starving and sick. In the case of Slavoj Zizek it's all just a show.