I think the best solution to this would be a referendum.
Yes let one of Western Germany's poorest Länder waste money, time and publicity on a referendrum which everybody know will end with a Yay and less than half voting and will serve nothing except making people even more tired of politics than they are.
Why do you think a referendum would end with a yea?
Because the vast amount of the population wouldn't care and for people who cared about sh**ts like this, there are Christian culture warriors, conservatives, Social Democratic hacks, general reationary people and volk who just hate FDP than limp wristed latte drinkers or who the hell who would care enough about this issue to make a referendrum about it.