Well, this is not a union therefore doesn't match all the features and objectives. The not-union aims to relieve inherit disadvantages of individuals v.s. corporations while preserving individual freedoms and free market dynamics. Just like companies coming together to fix a price and specs of their products thus leaving consumers with no options, workers coming together to force their own preferences by leaving companies with no options is also unacceptable.

If the unions actually do the things that you describe and people are happy with it, they should opt out for unions.