De-indexed in search is a bit different from effectively blocked in the browser. If Chrome says your site is dangerous and actually your site is harmless, are they defaming your website? If Google choose not to include you in their search engine, that could still be an issue, but it's probably a lot more nuanced.

The real question is

"Is it worth it for google to send their legal team to some small claims court hearing instead of just unblocking the site?"

And contrary to the popular belief, suing people really isn't that expensive if you've got the time to do it.

Yeah, I've experienced the same and it's really a pain in the ass. Apparently there's tons of orgs that can automatically add sites to that blacklist, I got abuse from some company saying there was a phishing page on my IP because it featured a login page and the text "Amazon" and suddenly chrome started showing alerts when I visited the IP.

As with most of similar systems (spamhaus etc) the people running them are just as bad as the people they're trying to stop.

If the claim that your site is dangerous is demonstrably false and there are demonstrable damages you can indeed be liable for damages or face injunction.

https://en.wikipedia.org/wiki/False_statements_of_fact

I'm not sure if you know what the "first amendment" is. I'll tell you what it isn't, it's not a magical trump card that lets you say whatever you want.

google is not a government agency. you can't claim first amendment when dealing with private parties. that's like me suing the NFL for not letting me post racist rants on their homepage because of the first amendment.

edit: i dun read gud. leaving comment as an homage to lack of literacy