We should celebrate and encourage minority governments. Afterall, they represent a different type of "diversity".  Not just based on superficial characteristics like skin colour, but based on attitudes and values.  Why would anyone want to encourage the "don't think, just follow the party line" type of government that goes with having a majority government?  That's not "diversity".  Having a diversity of ideas is the way to find optimal solutions to problems - not just the expedient cover-ups that we often see.