Why Must We Have Unionized Government Workers?

A question I have never heard asked, but it should be:

Why should city, state or federal government workers be unionized? They have the right to join whatever fraternities or organizations they like under the constitution, but why must they have to join a union to fight their government ?

I can see unions in private industry, to fight for working conditions, grievances, salaries and other benefits. For government employees: Vote evil politicians out. Political parties on the left supposedly are there for many of those workers. We hear their petitions every day.

Union redress against government can only be political.

The chief weapon of unionism today is the way they wield their power in government, in addition to the power of the voting booth. Private industry unionism is weak because most workers have not chosen them. Union power today is in the form of government programs.

So, unionized government workers are merely a tool of that movement.