He cited several real incidents where vendors like Amazon had been caught listening in and sending audio clips to random subcontractors for analysis.
Several huge companies, including Facebook, Google, and Amazon have made it their business to maximally violate the privacy of the general public.
This rubs off on companies like Apple that treat customer privacy seriously.
The "free market" doesn't stop rampant abuse, and doesn't stop damage to unlucky bystanders. If everyone cheats, then the incentive will be to cheat also. If everyone violates privacy, then there will be little to no benefit in not also violating privacy. Certainly not if consumers simply won't believe you.
It's the same logic as: "Every politician is corrupt, so why should I vote for you Mr Honest Guy? You must be corrupt also! I'd rather vote for Mr Clearly On the Take, I like the way he smiles".