There's a good amount of people who want bitcoin to die and often is has little to nothing to do with the technology itself.  There are a lot of people in which bitcoin simply goes against there political and social beliefs.  This new found, non-government regulated, decentralized payment system goes against what they're used to.  You've also got plenty alts such as Bitcoin Cash that would love to see bitcoin die.  The Bcash community spends half their time arguing that Bcash is the real bitcoin. There's also a large amount of people who simply want to see bitcoin fail because they don't understand it.  Simple as that.