I'm not a big fan of RMS, but this is a good point, in our current world the freedom to control the software that runs on devices you own is becoming more and more essential, not having that freedom undermines all other freedoms (from privacy to free speech).
Not everyone agrees on that. In fact, it's easily arguable that the vast majority disagree.
Based on the number of upvotes my comment got, I'm not sure that a vast majority disagrees.