There was a time when some of the things he talks about mattered (1980s), and that time has long gone.
The general public don't buy "computers" to tinker with any more. They buy them just like they buy a toaster. As an appliance to use. The software or hardware it runs is irrelevant. All that matters is the user experience, and if it fulfils the purpose - does it make good toast.
The Open Web Honeymoon is rapidly coming to an end and our ability to ignore his ideas is also rapidly coming to end. His ideas are regaining their importance fast, because the victories circa 2000 that allowed us to pretend he was crazy because our world was comfortable are being walked back. The classic Right to Read [1] is no longer a far-out vision but very nearly a matter of some switches being flipped in existing software and hardware. I see a developing consensus group on HN that we can ignore RMS as a loon, but now's a terrible time for that to take root. We're going to get stomped in the next several years if that happens. The fight for the openness of the next hardware generation has started and we're barely showing up.
The market decides these things extremely well. We don't need people shouting and taking extremist positions.
The only thing that matters is "Does this device solve a problem I have, and satisfy my needs?". If the answer to that is yes, then I don't care how open/closed/walled garden it is.
So, your bright spots are a fading category under active attack (web browser choice), a dubious walled garden (XBox 360) from the same company working to kill our browser choice, and a phone platform which as I've said goes back and forth between open and not depending on the who, what, and when, with basically a single project standing between us and the whole platform being effectively closed (CyanogenMod). (I'm assuming you're not claiming the PS3 as open after the openness was retroactively removed by Sony. There is nothing stopping Microsoft from doing that either.)
This isn't extremism to be ringing the bell, our insertion into the trunk is nearly a fait accompli, and again, we're barely showing up to the fight.
On the contrary. RMS's extreme views on software freedom are more relevant than ever before.
In the 2000's we have seen computers turn from general purpose programmable machines into walled gardens where you need a permission from the manufacturer to write and sell programs that run on them. That's pretty much the opposite of free software.
I also can't easily modify my toaster to fry sausages, because of the toaster company not releasing the design schematics and moulds. It's not free hardware!
You say that like it's at all relevant to the problem.
RMS isn't about helping people "tinker" with computers. He's about something much bigger than that. Freedom from monopoly business models.
Google has an absolute monopoly on search, but it's still providing the best search out there, so I use it.
I refer to business models that seek out monopoly status through techniques such as vendor lock in. Not just businesses that find themselves in a position of monopoly.
Hint: You can't make it on another toaster.