A real estate firm in New York City has lodged a class-action lawsuit over the city’s COVID-19 vaccine mandate for private employers, alleging it violates the U.S. Constitution. Cornerstone Realty, a Staten Island broker, filed the lawsuit, obtained by The Epoch Times, on Tuesday. It takes aim at a mandate issued by former Mayor Bill de Blasio and continued by Mayor Eric Adams, both Democrats. The vaccination rule forces businesses to verify that their workers have gotten a COVID-19 vaccine and to “exclude from the workplace” any worker who does not provide vaccination verification. It applies to every business that has one or more worker, as well as self-employed individuals and sole practitioners who interact with workers or the public in the course of their business. The order was meant to protect the public “against an existing threat,” even though studies show vaccines don’t protect against transmission of the Omicron …