You cannot blame video games entirely, but I can tell you, they do have a stimulating effect on those who have mental illnesses.
I for one, can attest to this. I have 2 adopted boys who came from a very bad background prior to adoption (abuse, neglect, violence) The birth family has a history of bi-polar, schizophrenia, etc. One of my sons has also been diagnosed with post traumatic stress from his abusive background and manic depression.schizophrenia.
30 days ago, he went crazy in the home and attacked the whole family. He currently is in a mental health hospital.
What drove him to go crazy in the house was that he was told he could not play video games. I took them away from him because I saw how aggressive he becomes after paying video games, even sports type games.
When you have a child on anti-depressant drugs, there is an effect with the additional stimuli of video games.