Leeching implies that there is party that is being inflicted damage. Alphabet makes $60B profit a year.

The party that is being inflicted damage are the creators who don't make any money from producing content for you.

YouTube pays most creators zero, treats them like serfs, and allows people to steal any money they might make if some rando says that the channel is allegedly using their song with little recourse and no interaction with humans. Creators live in fear of a strike against their account, that's wrong. I don't have too much sympathy for Google. Google only cares about advertisers and don't give a crap about creators. I'd rather (and do) pay creators directly.

That doesn't matter in this context. They are objectively hurting the creators that made the content.