I'm not misunderstanding anything. It's just that the idea of a massively profitable company being labeled "over-funded" when excess profit is used in a way that you find disagreeable is stupid. It doesn't matter how well they allocate their revenue.
Stop looking at the entire world through the eyes of VC, because it doesn't work.
You're not funding google by paying for youtube, you're buying a service.
You didn't "overfund" your pizza shop that hired a stripper for friday night vibes, and neither did 99.99% of customers that paid google for their service offerings.
You just bought a pizza. Put down the VC podcasts