The lesbian who stared in last week’s blasphemous mockery of “The Last Supper” might have reveled in the global attention the stunt received. But the ongoing backlash from the blatant insult to countless Christians around the globe might have been more than she bargained for. On Monday, the attorney for activist Barbara Butch announced on Instagram that Butch (her real last name apparently) has been the subject of threats she could be raped, tortured and killed and that she has been subjected to anti-Semitic slurs (she’s from a Jewish family). She’s also been on the receiving end of the usual …