How many more years must the Bitcoin protocol run before the nocoiners accept it? How many more years must Bitcoin continue to accrue value before it’s not “Tulip Mania 2.0”? 20 more years? 30 years? If Bitcoin “died”, do the nocoiners actually believe that the idea of Bitcoin and its ethos will simply go away?
i don't think this has anything to do with bitcoin or how long or strong it is going to run for because it wouldn't make any difference for those who spread this type of FUD in the end.
lets look at the reasons why they spread FUD.
they are either traders who want to swing the market in the direction they wish to, for example when they have some short positions open and wish to see them filled so that they can make profit so they spread FUD as much as they can to make people panic sell. they will never stop.
the others are big centralized corrupted actors who feel threatened by bitcoin's existence and will continue pushing the FUD as long as their corrupt business is afloat. as soon as they go under their FUD stops too.