Everywhere that ads are the only way to create revenue streams, that should be considered a commercial problem in itself. It should be way easier to pay (and charge) securely for services like this by now.

Most ads seem to be unwanted, but some of them seem to work to make the nuisance worthwhile. People regularly stumble upon content randomly, and get exposed to ads.

Paying for content is a conscious action, it has a higher activation threshold than just clicking mindlessly on something that looks fun.

Then, transactions are expensive; micropayments are not a thing.

Subscriptions alleviate that a bit. Large middlemen alleviate that even more: Apple and Google can make micropayments like $0.50 viable within their ecosystems, so apps or in-app purchases can be tiny, and allow to remove ads for paying users. Attempts to do something similar for websites never took off, sadly.