What do you mean by give Google more?

i've been stuck in google's walled garden since the early 2000's because i foolishly bought into their old "don't be evil" motto; so they have all my text messages, phone calls, contacts, emails, location data, pictures, etc. and i don't doubt that they've made a lot of profit from knowing all the details of my life and i don't want to give them any more.

i've also never had good luck buying personal electronics second hand and buying one second hand helps their resale value.

i want to use graphene, but i don't want to use a pixel (nor any new google offering) more.