This is all speculation about an unknown future. I see things play out differently from you and I plan around that. There is no sense in arguing about things no one can predict. But we have to be prepared to live with the consequences of being wrong. What if the bitcoiners end up being right? Would you be okay missing all those gains? If the answer is yes then you have nothing to worry about. But if the answer is no then maybe consider holding some just in case. No one can guarantee its success or demise. We can only do the best we can with the information we have available to us today.