Aren't they already, given that the practice of "crafted" social media feed has been in the public awareness for over a decade now?
I think many currently believe that social media is "fake" as in "unrealistic snapshot", but not "complete fabrication".
Or our social relationships cease to be predicated by social media platforms altogether
People are too dopamine addicted to these platforms to stop using them. The frog is already starting to boil and I don't think it's going to notice any time soon.