The thing that I hate most about WhatsApp is how they manipulate people into thinking that end-to-end encryption ticks all the privacy boxes. Yes, Meta might not be able to read your actual messages but they know who you are, who you message, how often, what groups you're a member of and most active in, what groups your most messaged contacts are members of - all that information is gold.
And when you click the OK button to allow WhatsApp access to your Contacts, are you sure your contacts are happy that you've just shared all of their contact info with Meta? Remember that potentially includes where they work, their job title, their date of birth etc.
Do people not wonder why Meta, a company whose very purpose is to farm and sell user data, would offer a service like WhatsApp if they weren't getting marketable personal data out of it?