Websites and any business really, have the right to impose terms of use and deny service.

Anyone circumventing bans is doing something shitty and ilegal, see the computer fraud and abuse act and craiglist v 3taps.

"And those LLMs didn't ask anyones permission to crawl the entire 'net."

False, openai respects robots.txt, doesnt mask ips, paid a bunch of $ to reddit.

You either side with the law or with criminals.