> For starters it's security theater, given everyone and their dog prefixes sudo to all commands without much thinking.
Setting aside the hyperbole, such as "everyone and their dog prefixes sudo to all commands" and "most of the FOSS community at large hates users", user/group/other permissions are one part of security in depth. Excessive use of sudo is indicative of an improperly configured system or use of software which lacks understanding of the OS which runs it. Both are causes for concern.
> Windows from the start places the user at the controls with mostly no child safety locks in place ...
To continue your analogy, child safety locks exist to minimize avoidable catastrophic situations for those unable to do same.
> ... with that power you have to accept that if you end up hosing the system the problem is you because Windows doesn't even pretend to really protect you.
At first glance, this has a "victim blaming" flavour to it along the lines of "you should have known better." A more concerning implication is that this perspective does not take into consideration what happens when a blackhat attack is perpetrated.
What benefit is "the sheer power to hose Windows with a single Powershell line" when it is not you whom executes it?
0 - https://docs.freebsd.org/en/books/handbook/introduction/