There is no guarantee for bitcoin because after all for now when talking about the future is better for bitcoin by looking at the process and progress of the years we have passed it is not a guarantee but is a hope because even though we always say that bitcoin will always develop but in the end this is just a hope that bitcoin is like that is not a guarantee so that we can see that bitcoin is at risk.
I think you are getting most of your statements wrong because reading your whole perspective about Bitcoin shows that you don't have the belief that your investment will worth something in the future, I'm not disputing your fact about the risk involves on investment but you should also know that Bitcoin doesn't involve that much risk if you are a holder and secondly before you have seen people having Bitcoin as there only digital investment is because in as much as they cannot tell what the price will be in years to come but they are very sure that they would feel relieve from the profit they would have, I'm surprised that you are seeing Bitcoin investment in this angle because I was thinking that with how fascinating Bitcoin has been over the years you would have understand the potential it has.
Belief in bitcoin does not mean we can guarantee that bitcoin will have a better situation because it is ultimately just a hope so in this case we cannot be naive even though we believe in bitcoin but that does not mean we always assume that bitcoin will definitely end well. In the end, better things in the future are hopes and current conditions when starting from bitcoin being created until now when looking at the progress and the process is very good so the hope is that bitcoin continues to be better in the future. That hope is not a guarantee.
Not that I say things like this I'm not sure about bitcoin because I also still hold bitcoin from a few years ago until now it's just that we shouldn't be too naive because in the end we must know the risk of being in bitcoin is that we must be prepared for all possibilities that occur including loss so don't just take the positive side but must be prepared for all the worst possibilities.