Youtube is definitely bringing back a profit to Google. Probably not huge, but definitely far from 0% return.
Now they did have to shove way more ads in there to make it happen.
Having an acceptable ratio between ads and a big media storage seems pretty much impossible, unless subscription based which most people can't really afford.
Well a lot of people expect everything to be free too.
But while I can afford to pay for my email provider and a few services, there is a large population that is struggling to even pay their rent.