All employees - union or not - have the right to participate in a protected strike, picket or protest.
You have a right to strike, picket, and protest regarding work-related issues, but there are limitations and qualifications on the exercise of that right. Your right to engage in these activities depends on the object or purpose of the action, on its timing, or on the conduct of those involved. (For more about unprotected strikes, see the "I am represented by a union" and "union rights and responsibilities" sections of this app.) Violence or other serious misconduct, such as destruction of property, is not protected.