Any solution must address the chronic under-saving that threatens to reduce the standard of living for a significant percentage of people earning from $30,000 to $100,000 once the pay cheques stop -- whether by choice or not. The people who should be using existing savings vehicles like RRSPs are not.
The employer groups that vehemently oppose CPP hikes mostly don't offer any pension support for their employees. And their arguments are increasingly hysterical. They are still calling any CPP increase a "job killer" and managed to convince the junior minister of Finance to parrot their talking points.