To an extent yes. I don’t think that all practices regarding businesses such as a sole proprietorship or partnerships etc. should be dictated by the employees. That is just reckless and would put many small businesses out of business. A ten person company where eight of them are on strike for more benefits, vacation pay, scheduling changes, etc. would go out of business very quickly with the legal options accorded to unions.
If I am working in a company and decide to get together with my fellow workers as a formal group to approach the boss about pay or working conditions, you don't think I should be able to do that?