It all started on a patch of waterfront property in New York, right next to the East River.The latest wave of perceived liberal activism made its way to Joe Rogan and Shane Gillis' ears through the sage wisdom of a traveling entertainer: They were tearing apart a park.'The park should be defended!'Instead of a sign-wielding mask-wearer debating the merits of universal basic income and banning landlords, the news came from comedian Ari Shaffir. T…