WhatsApp having been bought out by Facebook is a big pain. It's the defacto messenger for cross iOS/Android communication (at least where I live), and it's harder and harder to say "no I don't Facebook".
I have accepted that it's easier and better for me to be a pragmatist on these stances. Especially because the idea that "facebook is ruining democracy/the world/motherhood/apple pie" is my own biased opinion of the future. And I'm no good at predicting the future.
My comment was just a reflection on Facebook’s ever-increasing sphere of influence; I would have had no problem using WhatsApp before it belonged to Facebook.
Replacing Facebook with Google is just replacing one form of terminal cancer with another.
Obviously texts and phone calls are available, and I do not use WhatsApp because it’s Facebook; my comment was just a reflection on how pervasive Facebook is.