You are incorrect. Picketing, which is what unions do, is preventing people from entering the workplace. You can’t really picket in the workplace. But even ass

You are incorrect. Picketing, which is what unions do, is preventing people from entering the workplace. You can’t really picket in the workplace. But even assuming that is correct, unions wouldn’t support this because it doesn’t fall under the mandate or the union, which is to protect the direct interests of its members. Some unions may broaden this to protect the interests of the industry at large, but even that is because it’s considered related to the direct interests of the members. Unions may canvass their members to support other causes outside the workplace but they’re not gonna shut down the workplace to support a cause that doesn’t directly affect their members.