First: you speak for yourself. I for example share nothing on my fake name Facebook account. I use it to tell relatives to call me/send me a Signal message. Even with an Facebook account, they can only share what you give them. Nobody forces you to use McDonalds WiFi. Use your data plan. Your ISP must have some kind of stricter regulations even outside of Europe (where I am) then some ad sponsored access point.
There are huge differences and data minimization is a thing.
Your approach however is terrible. It makes it look like everything is lost and there is nothing to protect anymore. This is not only wrong, it sends out a horrible message to others.