At about 2:33:15 here, Zuckerberg somewhat alludes that Meta can take screenshots of WhatsApp messages.

https://youtu.be/7k1ehaE0bdU?t=9189

Does it even need to be screenshots?

Surely when I open up a chat in Whatsapp it would be as easy as doing a foreach on every msgElement.text value on screen and copying it to the mothership in plain text. After all, when I am reading them, they're decrypted.

Or, when I send a message, as soon as I press the "Send" button, send a copy to the mothership.

Perhaps I'm not seeing it right but it must be this simple. Right?

At least with an open source app you can inspect the "Send" code and see if it calls "SendToMothership" when it also calls "SendToRecipient".

What I got from your comment and from that interview were very different. He starts that bit with “when I text you on WhatsApp”. The “we” refers to Mark and Joe (Alice and Bob), not Meta (Eve).