I don’t understand when people complain about software that isn’t free. You want it free? Go make it yourself and give it away...oh, you can’t make it yourself? Maybe that’s why it’s not free.
That's not a complete argument. Anyone can mop the streets, but we still pay for their services.
"Goodbye to your propietary business" applies when you have a commoditized product that's easy to replicate feature-by-feature. In which case this is not a free vs propietary problem - another propietary competitor could leave you in the dust just as bad - it's a general vision and execution problem.