Here a link from a German organization of self-employed people that informs about the current situation and what is planned (it is planned to worsen the situation): (sorry, only in German)
http://www.vgsd.de/kampagne-scheinselbststaendigkeit/
The big corporations, of course, which really use different models to betray the social system and their employed people, they have the lawyers and the tricks to come away with it. And again, they are the reason for this hunt ... because they are searching for ways to cut costs -- the state tries to close the holes that make such things possible -- but currently the only people they hurt, are those that are innocent, because the big corporations are always ahead of the game. And additionally I am not sure, if the politicians are really willing to hurt the real big players, because those have so much power -- so they merely show "actionism" and make laws that are ineffective or even hurt innocent people.
At the end (if by intention or just stupidity), they hurt the country ... but we Germans still vote for those people!