GUNS: are not to blame for anything. You can not blame an inanimate object if it is misused and causes harm to others. You can only blame the perpetrator. Noone else. Used properly they keep you safe.
RELIGION: Is an individual thing, and the vast majority of Religions preach tolerance and forgiveness.
ACCOUNTABILITY: Is a personal thing also. If you are not responsible enough to hold yourself accountable for your own actions, misdeed, misstoughts, lack of education, or whatever you can affect in your life, then you are a social misfit deserving a swift kick in the head.