> Yes, but they own search ads and a large percentage of web ads (though the non-siloed web is becoming less and less relevant each year), and they do everythin

> Yes, but they own search ads and a large percentage of web ads (though the non-siloed web is becoming less and less relevant each year), and they do everything in their power to put people into their ad funnel. You can call any company as a monopoly if you define its market narrowly enough. The hard question is making a good argument for your choice of market. Google is absolutely a monopoly in search advertising. But is search advertising the right market to consider? Google would argue the appropriate market is advertising as a whole, where they are clearly not a monopoly. The ultimate question at hand is whether and to what extent consumers are being harmed by anti-competitive practices. I think in Google's case that's a hard case to make. It might be a bit easier for e.g. Facebook or Amazon, though.