Indeed, and that's the key point here. That's what people are failing to understand.

> other side that would suggest that a large company like that would be inherently harmful without actually deliberately leveraging its market share in anticompetetive ways

You might claim that, but your burden of proof is very, very high. And that has nothing to do with monopoly or anti-trust, so you need to create a new law and regulatory framework to act on.

As I mentioned in another comment: The Supreme Court has defined market power as "the ability to raise prices above those that would be charged in a competitive market,"(8) and monopoly power as "the power to control prices or exclude competition."

CPMs are falling, users never had so much choice, and DDG, Snapchat and Tik Tok can easily enter the search, social media and ads market.

In other words, even if what you're saying is true, it has nothing to do with this discussion.