[savanaly]

Surely you just believe that the fine is not high enough, not that it is ineffective in principle? There exists a number X which is the amount that google could be fined where they are ambivalent between that fine and a ban from the market for some period of time which is what you had in mind. Thus, a fine would be equally effective at X. So I don't see why you think fines are fundamentally ineffective?

[Sylos]

Sure, there exists some amount X, but you can hardly remedy a complete temporay ban with money.

Because it means that users have to look at alternatives. They might find that they prefer them in the long run, and it might even just incentivize competition to keep going. And this is especially damaging in monopoly-like situations, as many users don't even know of competing products.