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The author is clearly Apple and they are not responsible just as in the BSD license:

The Capitan is AS-IS, of course.

Unlike BSD, there is no source and a bunch of other very restrictive limitations, which is what I was commenting about.

1. I can’t use the Capitan with illegal copies of anyone’s stuff.

2. Apple didn’t sell me this software. They still own it, in fact. I’m just borrowing it.

3. If I install more Apple software, those are on loan as well.

...

And so on.

That wasn't a response made to your comment, and you are mixing two different arguments there. You guess in not correct.

So I'm left wondering what your argument actually is for why unwelcome scraping is ethically OK.

I never even suggested such an argument.

The behavior you described in the last paragraph is only deceptive from the eyes of an information and privacy surveillant state actor. Anonymity is not unethical, it is a human right.

Appeal to fear.

No comment.

No being able to determine a right cause doesn't prove a wrong.

Loaded question.

Even if identification was hard, which is not true because of how HTTP works, it is irrelevant because HTTP doesn't discriminate. If someone does, that is their problem, and should be solved by them, and not a committee or law.

Nobody is taking anything. If you don't want someone to access your page, then don't respond to their request.

You haven't explained how is it wrong and why. None of those thing are "wrong" by itself. It is the malicious use, of any tool, that is unethical.

Is there a website where we can blacklist IP addresses of such violators ?

What exactly do you think is being violated here?