Earlier quoted context omitted.
Well, what's the alternative besides a local keepass DB or something?
I use a mental algorithm that generates a unique password for each site. It's easy to remember the algorithm and I get a complex unique password for every site. I don't think a password existing outside of your head makes sense. (though some sites force unique passwords/and password changes, which can be annoying as I have to remember to bump a value mentally for how many times i've been forced to do it, luckily for…
So, for your practices maybe a password manager is a step down. But for 95% of the popular it’s a step up.
Security is a spectrum, and password managers move most people to a more secure stance. You can yell at people that they can be more secure until you’re blue in the face, but most of them will shrug and ignore you.