IDK, many people spend their whole lives glued to the TV or movies. it feels like it has only gotten worse. it also feels like people don't have hobbies these days. I think to convince people of what you're saying, we need to get people back into having more hobbies. or at least reading or something
The only solution I know is very labor intensive process (and kind of not covid friendly atm), Call up said friend and meet them in person for coffee / hikes / whatever you two like. Refuse invites to do "screen time" things...
