A system that expects parties to listen, compromise and find common ground produces calmer politics and better decisions.
Canada can have that too with proportional representation. We just have to choose it.
We've had minority governments before. We have one now.
Usually it's when the best things happen for us.
It's hard to use the successes of one system to promote another, though, as all of the good things we got from our minority government happened before prop rep.