Why couldn’t this call be an email? Why would you call, when you know that you are near indistinguishable from spam calls about Microsoft services and Nigerian princes?
As I have stated I only call if it’s an emergency (I’m in an accident, im in danger, someone else is hurt) or it’s time sensitive (someone has face value Taylor Swift tickets at work, want me to get them for you?) I almost always text first, wait 5 min then try calling, I’m not a monster.
I find it pretty self important of people to cut off last resort real time communication with close friends and family because you think 2 minutes of your day is that much more important.
You can configure unknown numbers to go to voicemail. Heck you can make it so that only a certain subset of people ring.
Shame on you for blocking everyone instead of learning how to filter communication, and double shame on you if you get mad when you missed something that someone was trying every possible method to get a hold of you.