Is a person addicted to screen media healthier than someone addicted to drugs? No. They are not. This is because no matter the addiction, it's the same drugs, scopamine, dopamine, and many others that occur naturally in our brains that we are addicted to. That's why too much of anything can become an addiction.
Further, children by the time they hit preschool, know more about brands and corporate values than they do about their own families and values. Marijuana an opioids are not the real crisis. The crisis is that we are driven to seek ever more extreme forms of escapism.