I'm kinda confused by this comment. The fact that open source isn't perfect doesn't mean co-maps can't explain why open source is valuable, given that it's a relevant part of the appeal of their project...
Like you're not wrong that the Linux desktop is far from perfect, but it kinda feels like you're just frustrated frequently one talks about it (which is fair, open source spaces can be a bit of a evangelistic circle-jerk. I say this as someone who loves foss), and this post prompted you to vent about that somewhat unrelatedly
I might be misunderstanding the point you're trying to convey...