Doomed to fail sounds to apocalyptic, I'm not too bullish on ethereum since they have a lot of technical hurdles to solve to get their network up to speed since they are running with a backlog of unconfirmed transactions but bitcoin is on the same spot right now, in fact all of the chains from the first few years of crypto are in a huge need of technical upgrades to be able to survive and stack up to the likes of Steem when it comes to transaction speed and cost!