But if they do know, like if you do work for a political party or are open with where your sympathies lies, they can easily exclude you and prevent you from wor

But if they do know, like if you do work for a political party or are open with where your sympathies lies, they can easily exclude you and prevent you from working within the union. Besides if you do vote for SD and don't tell anyone why would you want to pay someone that is actively work against your interests?