I used your exact words with no intention of selective quotation.
POSIX systems were hardly the first multi user operating systems nor the only ones. However there is nothing about POSIX that requires multiple interactive users and there have been plenty of POSIX system designs for only one interactive account.
Actually no, not as you phrased that. If you look into the history of UNIX and its derivatives, security was, as always, an afterthought. This is not to say there have not been derivatives designed specifically for secure operations under specific conditions but that as stated security was not the original intent.
But again, going back many years, there have been Unix and variant based appliances with only a single interactive user. This isnt new. For exmple, I dont know if you remember SCO Unix (at one time known as Xenix, but it was very popular for point of sale based systems. The single interactive user was a cash register terminal
There is nothing inherent to a GUI as you describe. Obviously one can in Mac OS do things which at the CLI require sudo permissions. Same for just about all other GUI variants these days.
When you get down to it being able to turn a network interface on or off in iOS or Android is in fact an administrative action…
Having these devices be insecure for users, and having that insecurity exploited by a corporate minority is ultimately a choice.
insecure for users? What?
I get that you are using “exploited by a corporate minority” in some political sense, but again, kinda What?
