It is the way people understand bitcoin that leads to the lose of one fortunes. If bitcoin is an asset and people invest in it and end up making profit by luck this is when bitcoin can be considered as an asset that people lose their fortune. The understanding of every individuals determines what they earn from bitcoin. If one understands bitcoin better their is good tendency of getting a better outcome from it and if the understanding one has is very shallow it can even make one to lose everything they have. People needs to develop a better understanding because this will make one yield good results.

We can't shift the focus only to bitcoin here because until any time bitcoin will only be an object and regardless of what happens it is entirely purely dependent on what we do and how we can use sophisticated technology like bitcoin properly and correctly.

It is not wrong with the argument that bitcoin can make us rich and all this depends on us who use it.
When someone becomes poor because of bitcoin does that signify bitcoin is wrong?  of course not because it indicates that the person still doesn't understand how bitcoin works and usually this situation occurs when they are too focused on pseudo-profits such as when they are lured into big profits from trading by influencers who offer classes or those who are tempted by profits without having to think about how fluctuations by giving their money and others who manage or in other cases they are too careless in storing seeds. It all comes back to the behavior that we do so in this case it all comes back to ourselves who run it because any sophisticated technology when the user is stupid everything will still be destroyed.

This is a clear situation of having a wrong or poor understanding of the concept of holding bitcoin. if you whole a large chunk of bitcoin and mess up till everything flies into thine air, same can still happen to you if you hold the largest amount of money in the bank and decide to spend it on the wrong thing or invest it wrongly.

If you are an investor, you can never go from bottom to up and back to the bottom because because has never had a period that it went that bad to have given you that degree of loss. if there is a loss to that extent it is only that you went into trading and exposed yourself to the kind of risk that is capable of eating up all the accumulation you have done prior to that moment. lack of proper planning in any form of investment will always lead to loss especially when you are dealing with a volatile asset. it is not about bitcoin.