The argument is that the shared economy is essentially employing workers, but without the worker rights and protections that we have built gradually up as a society over the last few decades. Many find this hard to reconcile, not least the companies because the individuals want complete freedom and control of their day and working life and want a platform which provides them access to the market which they can dip in and out of at their will.
Office culture is changing rapidly. Many companies now allow employees to use group messaging apps like iMessage or WhatsApp to talk to one another. It's a new and largely unregulated medium. The odds are that it's just a matter of time before careless employee chat habits leave companies open to cyber attack, costing them their jobs and possibly their bosses' jobs too.
If we are ever to have a hope of rebalancing the books, meeting the future costs of the NHS, and satisfying our pension liabilities we need to look beyond capitalism. It's served a fortunate few well, but it has failed the majority. It's time to bury it alongside socialism and look for a better successor to both.