“Installing APP does not require you to switch to it nor asking friends and family to use it. What it does is allowing them to reach out to you in a private way. By installing it you respect and support their choice of avoiding BAD_APP.”
On the sidenote: Just recommend Signal. It uses phone number as identifier, easy to grow by using phone book, has good track record when glowies have a warrant and most importantly it’s stable. It has flaws (no sms, not saving chat history) but there are no other alternatives available yet that beat signal for normies.
A company will never do anything that is not increasing their profit. If the profit of breaking law is greater than the fine then they will do it.
What they will do, is create a button called “delete account” which will just block you from logging in. It will not delete your content. Sending an email which clearly says they’re getting sued is probably the easiest option. You gotta speak their language.