You have no idea of Whatsapp's marketshare in India - all small businesses use Whatsapp for all communication and even take payments. That's a 1.4B population.
Maybe not but they have all the timing info, the identities of the chat participants, and the facebook surveillance network. They also used to leak URLs pasted into the app out in order to generate previews, so they know what you’re linking to from within the app. Us they can infer way more about you than seems obvious at first.
They are encrypted to your device and your device can upload them unencrypted in backups if you don't configure encryption. Plus the original argument was Meta did not have access.
It's not about money - how valuable the company is depends on how many people use it intersect how useful it is.
As long as it's valuable, it's valuable.
I have a great idea of Whatsapp's marketshare globally. I am simply pointing out the ad revenue of Whatsapp is extremely low compared to their other properties. There is simply not enough surface area in Whatsapp used for that and their business profiles etc. are not going to be outearning US users of FB/Instagram.