Earlier quoted context omitted.
I think you are trying to claim that Google goes further than DVD or netflix, but this analogy is really not working for you. DVDs have technological protection as well -- the CSS[0] system. So yes, if you don't want your movie to be pirated you need to explicitly enable this. This was probably harder than creating robots.txt too, there were NDAs and stuff involved. The netflix requires logging in to access the conte…
The point is it doesn't matter how hard or how easy it is, Google has no entitlement to anyone else's labor or content and if they post content to their website in violation of copyright I don't think "he didn't say the magic word that stops us from stealing content" is a defence any reasonable judge should entertain.
Now we are talking specifics! Are you implying that Google is violating the law? Given that the snippet showing has been going for a long time and no one has sued Google for it yet, it does not seem to. Plus, there is the whole Fair Use laws [0].
I personally love that I can take snippets from the random websites on the net, quote them in my posts, and not worry about copyright infringement. And if I can do this, why can't Google?
[0] https://ammori.org/2012/05/08/copyright-misunderstandings-an...