So that's unions out then. Sounds like a political stance to me if you ban people from advocating for collective bargaining in the workplace.
So you take this political stance outside of work. If enough people can be convinced that collective bargaining is a good idea, it will get enshrined into law. Employers will have to comply.
On the other hand, organising during work time (which is being paid for by your employer) is unethical - and regardless of my feelings of the idea of collective bargaining, it should not be done on someone else's dime.
I dunno where you live, but organizing at work is a protected right that workers have in the US and Canada (and other jurisdictions, but that's where I've been employed). An employer forbidding that is actually a violation of labor law.