I stopped reading when he uninstalled defender. Is the best thing ms did to windows!
OP is like the 90% of linux users: if it doesn't do what he wants him to do, it sucks. Like you said most users don't care about TMP, they also don't care about who is protecting them, what interface it is, how printers work, how office works, how browsers work. This is why windows is/was successful, you start it, open outlook, mail, browser, print, play games, etc. Without ever thinking why it works.
Does windows suck? Probably, but it does the job and is enough for 99% of the home users.
Also if someone wants to personalize windows check reddit, you can change almost everything.