Article that explains this in detail: http://www.panture.com/why-bitcoin-will-force-ebay-to-go-bankrupt/
Alibaba is in China, China hates bitcoin.
Apple hates bitcoin (you can't even get any bitcoin apps from the apple store, since apple banned them all)
Not sure about amazons stance on bitcoin
Ebay/paypal are the only ones who have shown interest in bitcoin out of the ones you have listed. Maybe they're not as stupid and anti-bitcoin as you think. Maybe they'll actually change their course much beofr ethe others and by making that move they might survive and take an even bigger market share.