> for some companies, like Google or Facebook, it's pretty hard for a consumer to actually give them money in the first place, nor is practical [0] to not use their products.
Well, the only Facebook product I use is WhatsApp, and that's to talk with one person in Europe who only uses WhatsApp. The only Google product I use is YouTube, and I only use that with an account that is not used for any other purpose, and on a tablet that is not used for any other purpose.
So my experience is that avoiding these companies is entirely practical. All you give up is a small amount of convenience.