Mastodawn

I'm trying the possible-impossible task of getting businesses in my local area (and maybe further afield) to offer signal as an alternative to WhatsApp.

Pls I need links, articles, etc to help me put together a definitive guide/reasoning as to why. I know why myself, but I want to get all of the shady actions/etc of meta/WhatsApp in there to help people see.

Can anyone out there help me? Thanks.