Classic knee-jerk reaction. Don’t use Facebook and they literally can’t do anything with their data. I’ve stopped using FB beyond messenger and I doubt my data helps them in anyway shape or form.
It may also be a bit of a knee-jerk reaction, but in a world where even seemingly innocuous data is used to find unexpected correlations and identify people, I certainly prefer to keep a safe margin of error and steer away from companies which live on our data.