Sounds like you bought into unverified right wing propaganda to me because you abhor the fact that populist left progressive policy positions have become overwhelmingly popular among the American people
Too bad you are so lazy or self centered that you just deny what somebody else said without checking the facts first. Also your flat out denial and flimsy reason should be trademarked with a lobotomists ice pick for a logo. "you abhor the fact that populust left progressive policy" blah blah blah. Dude, you just make that shit up. London is nothing like that. Your anger hormones are interfering with your ability to think. Usually, anyway. Also, the 6 or so candidates you Progressives(TM) might land in Congress hardly represent an overwhelmingly popular movement. Please don't quote opinion polls. If your idea of a politically powerful movement is something like 12 people running and maybe half making it to office then good for you but you are wrong.
About the claim:
The Free Beacon, a viscious right wing media outlet spawned by right wing billionaire Paul Singer took a few pages from a book, "We Are Gods" about a commune in Vermont and made a whole essay about Bernie with some very sensational stuff in it. They say Bernie was asked to leave the commune because his incessant political arguments and debates were resented by commune leaders because work wasn't getting done.
When not reporting on the miracle of life, Sanders spent his time at Myrtle Hill in "endless political discussion," according to Deloz.
Sanders’ idle chatter did not endear him with some of the commune’s residents, who did the backbreaking labor of running the place. Daloz writes that one resident, Craig, "resented feeling like he had to pull others out of Bernie’s orbit if any work was going to get accomplished that day."
Sanders was eventually asked to leave. "When Bernie had stayed for Myrtle’s allotted three days, Craig politely requested that he move on," Daloz writes.
The NY Times wrote a review and toned the rhetoric down with direct quotes:
The paragraphs that grabbed the attention of The Washington Free Beacon and other outlets involve Bernie Sanders, who visited the commune as a newspaper reporter. A man named Craig, one of the group’s leaders, was sympathetic to Sanders’s views, but was bothered by “his penchant for sitting around and talking about ideas when there was so much work to be done. . . . Even though he agreed with almost everything Bernie had to say, he resented feeling like he had to pull others out of Bernie’s orbit if any work was going to get accomplished that day.”
So, yes, Bernie was asked to leave the commune but he was never a member of it.