Whaaa? Nope, not how that works.

You can't run afoul of antitrust laws without being a monopoly. It's why Apple can make it so safari is the only browser available on the Iphone whereas microsoft lost a bunch of money (particularly in the EU) for installing IE by default on everyone's computer.

Android phones are nowhere near antitrust territory, specifically from google. Before they'd run any risks they'd need to actually outsell someone like samsung or apple.

Just because you are rich and potentially a monopoly in one market, doesn't mean you are in all markets.

If Google is deemed a monopoly in search (or advertising, or Android app store, etc.), using that position or money to try and gain advantage in another market (in this case, phones) is problematic.

And this way, they risk running afoul false advertising and class action lawsuits. Its not mentioned anywhere that the phone becomes dangerous to use after 3 years.