What's Killing The FOSS Desktop Linux Ecosystem?

Mobile computing absorbing the next generation of nerds, prompting switch from hobbyist devs producing open source, often collaboratively, for free, to producing fiercely commercial software, designed to drive ad revenue and a marketplace for google, for peanuts.
Secureboot
Windows 7 actually being a fairly likeable OS
Ageing nerds giving up and buying macs and iDevices.
Netflix and the death of principled geeks("OMG PONIES, NETFLIX COMIGN TO LINUX", "erm, guys, it relies on google shoehorning binary only DRM support into HTML5, this is horrible", "BUT PONIES!!!1, TAKE MY MONEY ALREADY!!!")
Android(see 1)
CowboyNeal's undercover mission to sabotage Ubuntu just as it was becoming a sane desktop and gaining popularity
I don't like change, this is all very sad, why did slashdot have to die(it appears to be full of dudebro scum and angry misogynists, it may as well be dead at this point)?
Software as a service, web 2.0, etc.

I realise these aren't exactly viable poll options, and could be in large part bollocks, on top of that.

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