In my view unions make most sense as a collective organization representing labor in negotiations against the collective organization of a corporation represent

In my view unions make most sense as a collective organization representing labor in negotiations against the collective organization of a corporation representing capital. I'm not convinced yes that unions make sense when the other party represents the interests of the people - ie the government. As a similar example, I don't want our military to have a union - it seems like that would be overall detrimental as well.