How to translate the word "Bai Zuo"?

In fact, this word ... how to say it. Some people call themselves leftists, and at the same time, in order to highlight their "revolutionary" and "different" and to draw a clear line with the so-called "white left", they abruptly fabricated a word. But it also caused a big joke-Zizek's problem a few days ago was a representative, and this year's "true left" actually depends on whether or not to support Trump-not to mention that Zizek didn't "support" Trump at all, which is really a record. In addition, in order to express their "revolutionary", these people especially like to criticize Bai Zuo's "dare not do it"-or something similar. But? Is the "white left" in California "dare to do it" now? It's better for me to go to the street with a red left and a white left → What are the skills when I first went to the street? I might as well start demonstrating → violence at every turn, a bunch of thugs.