Last time I checked, Ubuntu/Canonical is a multimillion dollar company, Red Hat is a multibillion dollar company, SuSE sold for $2.5B, and The Linux Foundation has over $250M in revenue to spend only 3% on development of Linux specifically.

Enough of the BS of "we're just volunteers" - it's fundamentally broken and the powers that be don't care. If multiple multibillion dollar entities who already contribute don't see the Linux desktop as having a future, if Linus Torvalds himself doesn't care enough to push the Foundation on it; honestly, you probably shouldn't care either. From their perspective, it's a toy, that's only maintained, to make it easier to develop the good stuff.