No matter how many times that's been shown to be wrong, many people still believe it.
The best part is they argue in support of it with the tautology of "if it's a problem then a business will fix it. And then someone points out all the problems that business has not fixed, their response is 'see well it must not be a problem'". Completely ignoring all of the structural reasons why it doesn't get fixed.
And that how we get this rampant collection of "data brokers", and all of our data being captured and sold by every platform.