WhatsApp has introduced a permanently visible Meta AI button on its platform, with the company insisting that the feature is “entirely optional,” despite it being non-removable.  The ever-present blue circle with pink and green splashes now sits in the bottom right of users’ chat screens – and AI critics aren’t happy.  For now, there is a workaround, as WhatsApp has stated that users can block Meta AI on a chat-by-chat basis through a setting called “Advanced Chat Privacy.” “When the setting is on, you can block others from exporting chats, auto-downloading media to their phone, and using messages for AI…