None of the people I had on WhatsApp think like me. They're mostly just my family and relatives. But I told them "I'm quitting WhatsApp, if you need to message me, use Signal". And they all just downloaded Signal because it's honestly not that big of a deal. It's just another free chat app.
"It's not how the world works". Of course it is. Most people downloaded WhatsApp because someone told them to so they could message each other.