Independent contractors (the drivers) can join or create a "union" but they don't have the same privileges as a traditional (Full-Time employee) bargaining uni

Independent contractors (the drivers) can join or create a "union" but they don't have the same privileges as a traditional (Full-Time employee) bargaining unit - most importantly a union of ICs have no collective bargaining rights. For example striking independent contractors are not protected under the National Labor Relations Act. My understanding is that this law is meant to bridge some of the gaps in the labor laws by the drivers being independent contractors.