I think that the source of evil lies in the average amount of time a child spend in front of screens every day. Of course, the more time a child sits in foront of a computer/cell phone or even TV, the greater the chances are that she will be exposeed to malcontent.
But long screen time has other physical and cognitive risksm such as obesity and ADHD.
It is imperative that we as parents restrict our child exposure to eletronic media content. This wonderful article explains how to do it:
https://www.newbornsplanet.com/childs-screen-time