What lawsuit? There is no legal basis for a lawsuit. As a private corporation, Google is free to rank search results however they like regardless of whether that's done by humans or algorithms.

You'd think so but Google has essentially a monopoly depending how you look at it and some countries have stricter rules than others.

So what? You haven't cited a successful lawsuit against Google on that issue, or even a plausible legal theory. Have you discussed this with an actual attorney?

I wasn't the one mentioning lawsuits. Check OP's message I was replying to. You seem confused.