Yelp is an outright extortionist: https://nypost.com/2014/10/13/restaurant-fights-yelps-allege...
And I don't think I need to go into detail here about just how awful a company Oracle is.
but, the call, from some corners of the national political scene, to focus on breaking up Google strongly suggests that Google is a much, much bigger problem than Yelp or Oracle. even a little bit of problematic, biased, anticompetitive or evil behavior by Google has a giant impact.
Also, it's hard to see how breaking them up would even work. Many of their products are free, and only available because of their money-making ad business. I guess you could make them divest YouTube; that's self-supporting with its own ads, and doesn't really need to be integrated with the rest of their offerings. But things like Google Photos wouldn't survive on their own.
Think about how both yelp and TripAdvisor both built out their websites to comply with Google SEO rules (for organic search) and used Google AdWords (to pay for keyword ads to drive traffic and convert sales).
Google used their market dominance to learn everything about these markets and created competitors to both yelp and TripAdvisor. Google’s spin off companies then bid up the same adword keywords (so where yelp and TripAdvisor May have paid $1/click now google is bidding them up to $2 and these businesses can either pay or lose out to these new google businesses).
Google shouldn’t be able to use their market position to enter new markets in order to drive up costs to their existing ad customers and ultimately the end users.
Oracle and Google are currently what may be the biggest tech-related legal battle of the decade. It is up to the supreme court now. To put it simply, Oracle claims that Google hijacked Java for its Android ecosystem.
There may be some other areas where they compete, particularly when it comes to cloud services, but I think Java is the big one.
What is weird in the Oracle vs Google is that they are debating copyright over the APIs and that for me seems unrelated.