[sls]

I rarely bother to address this argument:

> open source software is only free if your time and expertise are free

but since you seem to actually be trying to discuss this in a thoughtful way, please note that we're not given a choice between free software that takes time and expertise to use and maintain vs closed software that takes no time or expertise to maintain. To mimic your original phrase, Windows 10 Pro is only $199 if your time and expertise is free. Going further, in my experience it's often been the case that the free software takes less time and less expertise to use and maintain.

Also, it's worth mentioning that you are conflating two different things, open source software and free software, a distinction that often doesn't matter but is central when the point at hand is the ethics of free-as-in-freedom software vs non-free software, a distinction the term open source was deliberately created to elide. You are also conflating free-as-in-freedom with free-as-in-beer by opposing the "software is only freedom-free" with "your time and expertise are free-as-in-beer free".

Finally it's not clear to me why you went on to address the pragmatics of non-free hardware or the fact that human effort is necessary to build computers, maintain distros, write kernels etc. Is there a claim that it's unethical to try to run free software on the hardware that you have, or that free(dom) software must always be provide without cost on hardware that is both free(dom) and without cost? If not, then computer users can still spend a small amount of money, relative to utility, to buy a computer that runs free(dom) software.

I'm not disputing your claims that accessibility software on Windows or iOS is better than that on Linux, because I don't know the space. It's an unrelated argument, afaict. To illustrate this, simply imagine that some government or corporation had decided to make high-quality accessibility software available under a free license. (I am reminded of Intel's work supporting Dr. Hawking.) You wouldn't conclude from this that all your previous thoughts about free and open source software vs closed/commerical software were wrong, I assume.