On Monday, a film company, Kartemquin Films, uploaded footage of a young man,
wearing thick glasses, surrounded by police officers who grabbed him by his arms and carried him away. The man looked like it could be Mr. Sanders, so the company asked the public and Mr. Sanders to help confirm whether it was. On Friday, Michael Briggs, a spokesman for Mr. Sanders’s campaign, and Tad Devine, a senior adviser to the campaign, said Mr. Sanders had said it was him. What sealed it was the watch the man is wearing; Mr. Sanders recalled owning a watch like that, Mr. Devine said.
It isn't exactly clear what Bernie was protesting in 1963, whether it was a protest against segregation overall including on private property or segregation at a public school, but I doubt Bernie had any sympathy for private property even back in 1963.
Mr. Sanders, then a 21-year-old student at the University of Chicago, was arrested on Aug. 12, 1963, while protesting segregation in Englewood, where Chicago Public Schools was planning to build a school.Of course, the libertarian position is that no one should prevent segregation on private property. People should be allowed to associate with whomever they choose and avoid whomever they chose based on any criteria at all----dependent on the desires of the property owner. This is Private Property Society 101. It has nothing to do with what "society" thinks, what "cultural" perspectives are. what is "right," over-ruling bodies, etc.
As for public schools, in a Private Property Society there wouldn't be any government schools.