So, you want to attribute all the Boomers going postal in the last four decades to growing up watching the Lone Ranger and Hopalong Cassidy shows? Those were violent and statistically just as likely to cause this (i.e., not at all).
Here are 14 cases of video games linked to mass murder.. Show me one from Hopalong or Lone Ranger?. It aint the 70 year olds that watched those shows killing people.
Lone Ranger never killed anyone.