This socialist pol is keeping his past in the rear view. David Orkin, a Democratic Socialists of America-backed candidate vying to unseat one of ex-NYC Mayor Eric Adams’ biggest allies in the state Assembly , promotes himself as a “working class” candidate — despite being the silver-spooned spawn of a celebrity butt doctor. Orkin, an anti-Israel activist and lawyer with the George Soros-backed immigrant-rights “social justice” nonprofit Make the Road New York, gushed last week he’s the “proud