Yeah, there are no winners when we play the Blame Game. I think in early recovery (or deep in the throes of addiction), it's commonplace to look for a reason for all the troubles.
Namely, we want to know: WHO or WHAT put me here?
I must have been pushed into this mess. Because there's no way I'd have chosen this life for myself. I didn't do this on my own. People can blame specific events, a group of people, or even a vague conglomerate ("the government", "advertisers").
I believe much of the blame can be legit. But, like you, I think it doesn't really matter and it's a big waste of time - especially for those new to sobriety. I try not to engage in too much "back in the old days" stuff with people. I'm mainly concerned with where I am going, and what I am doing now. Wish others wouldn't get so bogged down with ghosts from the past.