Roseanne Barr’s son, Jake Pentland, slammed Michael Fishman after the “Roseanne” actor claimed the show’s reboot was “rightfully cancelled” due to Barr’s controversial 2018 tweets. Pentland told TMZ on Wednesday — a day after Fishman shared a lengthy Instagram reel explaining why he felt the comedian’s controversial 2018 twitter rant continues to cause “collateral damage” — that while he agrees she was wrong for the social media posts, he feels it was Barr herself who took the brunt of the backlash. According to the outlet, Pentland claimed cast members took her tweets out of context and allegedly “conspired” to take her sitcom revival…