If your Bitcoin portfolio is protected from thieves, hackers, and protect your privacy, it doesn't make Bitcoin immune to devaluation.
You can be right, but I think it can be impossible for bitcoin to devalue over long period of time. These are my reasons:
1. If you can check past time, bitcoin marketcap is not as high as this, and also bitcoin is mosted used by retail investors unlike now that institutions are the whales recently investing, which may change bitcoin realized cap and strengthen it.
2. Bitcoin is also a deflationary currency, as people are getting to know bitcoin, there will be a time its marketcap will be strong like gold, and because of the limited supply, more people will be encouraged to invest in it.
I am thinking in the next 60 years, bitcoin ca never be $20000 or lower again, its marketcap will be in trillion at the time. Very possible bitcoin price will surpass $100000.
If bitcoin reach all time high ($20000) soon, that means it is still a deflationary currency, and nobody that is holding it again is losing, aside the fomo people that later sold bitcoin at loss.
If someone hacks your wallet you're fucked. If someone hacks your bank account, the bank is supposed to refund you for their lack of security.
You are right, but custodial services like Gemini Trust are providing the custodial means, that was even the reason I made the topic, but some members did not agree for such custodial means that bitcoin should be totally noncustodial. I go noncustodial, but it is certain that the custodial means will dominate, and cold wallet is being used by Gemini trust to save the funds, and if anything goes wrong, the custodial service provider should be held to provide customers funds.