Most people use social media such as discord or whatsapp in order to make social activities and communities simple with the majority of their friends. A majority of people do not give a shit about integrity. The only group I have ever managed to convince and actually use Signal for messaging out of all my groups of friends and peers is the Computer Science Dept PhD students.

For most people, it's not realistic to give up their social bonds, they are too far in. If you are hoping for some revolution or change in this aspect is way too late. You can have small fringe groups engaging in this, but at the end of the day you are overestimating how many people actually give a shit.