Not single-handedly or deliberately. Yes he’s somewhat responsible.

Do you personally deserve a second chance after making a large mistake in your life? 

 he is responsible,  he made the call. 

 So your life is over and you should be cancelled forever if you make a major mistake, got it. 

 he can forgive and trust himself,  thats not my job or obligation.  

 Nobody asked you to 🤨