Michael Fishman dismissed Roseanne Barr’s recent podcast takedown as “obvious lies and name calling” in a lengthy video Thursday. “I know everybody wants a response,” the actor, 44, began his Instagram video, two days after a scathing clip of his TV mom’s upcoming “Can’t Be Censored” episode went viral. Fishman went on to thank Barr, who told him to “shut the f–k up” and “stay f–ked,” for “finally admitting the public truth” — that he reached out to her the morning after the racist tweets that got the “Roseanne” reboot canceled in 2018. He “vehemently” condemned” the tweets at the time and went on to star in the “Conners” spinoff alongside…