you said that hack bitcoin wallet is possible,tell me how its work and have you see some case that bitcoin wallet hacked directly by backdoor way?
Bitcoin isn't hackable (ATM). These aren't hacks on Bitcoin, but rather hacks on particular users and their software (OS).
Let's take an example about web wallets, some shitpeople makes phishing site and it's really present in some of the banners and ads today in some of the famous sites. It's actively seen too in some of the PTC ads today.
Such theft happens due to human error, most does.
The argument is that its more likely to lose bitcoin because of a lost password than it is because of a hack. This might be true for some people, but those are usually also good a remembering passwords.
this is true, as i don't remember the password of my first core wallet, tried recovering but of no use and i left that, this is the most common mistake ,people starting out in core wallet usually have these issues.
It solely depends on the person itself as shorena said. I remember my 30+ character passwords just fine and have been doing so for years (my wallet is no exception).