It would be glorious if everybody unjustly screwed by Google did that. Barring antitrust enforcement, this may be the only way to force them to behave.

it wouldn't work. they'd hire some minimum wage person to go to all of them and just read the terms and conditions you agreed to that include language about arbitration or whatever

Terms of service, written by a corporation, do not overrule the law, of a country.

Especially not when the plaintiff isn't even a user of the service.

How did they agree to those terms?

Probably includes something insane like "By allowing your website to be crawled by google spiders, you agree to the following terms...."

Ok, by not objecting withing 5 seconds you hereby agree to let me shoot you in the head.