It is a “zealot” opinion because I don’t topple over at the slightest breeze.
Both Linux and Hurd are libre software. However, the freedom of linux is compromised as torvalds set the standard for how OEMs can circumvent the GPLv2.
“viable competitor” is not the correct term to use. It miscontrues decades of history and circumstance.
Hurd is far better than Linux in terms of ensuring your freedom. But linux is better for getting more folks onto the freedom ladder. Linux however, isn’t the end goal: GNU is. If you don’t know what that means, congrats, you’re part of the problem.
GNU has their own kernel, called linux-libre, which follows the same set of principles as Hurd. It won’t function 100% on modern OEM hardware but its important as message towards freedom.
I use a blobbed kernel one if my machines, but I also have a librebooted debian thinkpad. I am intensely interested in a fully free OS, this is why i seem stubborn to those who don’t even keep what Im saying in mind.
My x220 uses intel microcode, that is nonfree software. However, I was convinced by the founder of libreboot’s (Leah Rowe) extensive writing to make it so. Im not completely stubborn, but Im also not careless.