>But I don't see that happening.
Then you are not looking. Already have to switch to resi proxies from time to time when encountering yet another smartass who decided to play security theater and block datacenter ips on his shitpile he calls website, because "OUR USERS MUST BE GOOD BOYS WHO LOVE TO LIVE UNDER SURVILANCE AND ALLOW ISP TO TRACK THEM 24/7" (and before you say something like "others can track you too!", your ISP has the ability to knock on your door, they should be given as little information as possible, let them do metadata analysis on per-person basis if they really want it, but no 1-click mass surveillance shit).
If you are valuable, you will be be scraped. Turning user hostile in a hopeless endeavor to "protect yourself" is not the solution.
It's hostile to you personally, but I wouldn't call it "user hostile".
Blocking "scrapping [sic]" is also not security theater, you misunderstand the intent of GP.
I trust my ISP far more than I trust bigtech. The downside of connecting from my ISP is that the site I connect to can fingerprint me trivially from the IP range
I can see that you're having strong emotions about this, but that rant is just hard to read and serves primarily as venting and not really to convince anyone of anything.
Unless one zooms out and thinks "okay, these guys seem to react negatively if we do exactly that. We should do more of it", which is probably not what you want.