I admire the conviction, but I think you're underestimating the social inertia that platforms like WhatsApp benefit from.
The unfortunate reality is that most people won’t follow you. Not because they don’t respect you or your concerns, but because the cost—in effort, friction, or just breaking habitual patterns—is too high. Social coordination is fragile, and it leans heavily on lowest-common-denominator tools. WhatsApp has become that denominator.
What’s likely to happen is this: group chats will move on without you. Events will get planned. Conversations will unfold. People aren’t going to message you separately to accommodate your principled stand—not out of malice, but out of convenience and momentum. You’ll be increasingly left out, not because anyone wants to isolate you, but because ecosystems don't fracture easily.
After a few months of being disconnected and missing out, there’s a strong chance you’ll reinstall WhatsApp—not because you’ve changed your mind, but because opting out of a near-universal platform means opting out of modern social participation.
This isn’t a defeat of principle—it’s a reflection of how network effects work. The only way to realistically challenge something like WhatsApp is if a critical mass moves at once. Individual protest, while noble, often just leads to isolation unless it becomes collective action.