[stale2002]

> that actions like Google's are fine until a company becomes to big

Thats literally how anti-trust laws works. Once a company gets too big, certain anti-competitive actions become illegal.

> Why do we even care about fairness now?

It is not really about fairness. Instead, it is that if a company is large enough, certain actions negatively effect the market much more.

If a company is large, then people have few other others, and anti-competitive actions have a worse effect on the market.

If a company is small, it doesn't matter very much if a company is behaving anti-competitively, because people can just use a competitor.

Thats the justification.