With that being said, if you use Windows and your hard drive isn’t encrypted, it is ridiculously easy for me to break into your account, access all of your files and take full control of your computer… Provided I can get physical access to it.

That’s a big if there. If you can get physical access to my home computer, I think you “breaking into my accounts” is the least of my concerns.

Working in IT, I see far too many of your passwords, and you suck at passwords. […] Stop using the same passwords for everything.

While that is generally not so bad advice for some people, there’s also a legitimate use of shitty passwords - for about every stupid resource that forces an account on you for trivial shit. Also, throwaway accounts of anything.