I actually disagree.
While Open Source code is actually a very nice to have thing; it is by no means a requirement.
Software can still respect your privacy and can be Closed Source. While it is much more onerous and difficult for people to see your code; code behavior can be verified and audited in a number of ways that does not require read access to the source code.
There are legitimate reasons for software being closed source; and I do not deny that open source code can be preferable in certain situations.
However in the end it’s up to the end user how to assess the privacy of the software they choose to use; and by extension vote with their feet and wallets if necessary to support the development of whatever software fits their needs.
Sometimes, unfortunately, the realities of this world make it necessary for useful and functional software to be closed source; so that a developer or company of developers can remain in their jobs to continue development and refinement of said software.
On the other hand; many open source projects are done by hobbyists and genuinely they don’t always receive the support and priority they really need and deserve; because those developers, well, they have to prioritize the person signing their dayjob paychecks…and can’t always make time for a side project they started as a hobby.
This is blatantly false. That is an opinion piece with scare tactic language, exaggeration of facts and whimsically redefines entire words and phrases to push to persuade it’s reader. There still exists closed source software that functions on an ethical business model. The onus is on the user to decide what terms they can accept and manage with; and choose software appropriate to those needs.
I will never agree entirely with the GNU/Stallman viewpoints of FLOSS software. It’s a fucking toxic fanboy club. Don’t reply to me with that elitist nonsense.
That is largely irrelevant; as it’s up to developers to pick a business model that works best for them. Not all of the given business models work for everyone; for a variety of legitimate and non-greed related reasons.