I am all for individual responsibility. The Scriptures teach that we are responsible for our own sins. No more shall it be said (heard) in Israel, "The fathers eat sour grapes, and the children's teeth are set on edge."
Yet, our understanding of human nature bids us look beyond sin as something as a purely voluntary action of the will --and something that can be resisted by mere willpower.
It is an essentially Pelagian view of sin that says all we must do is resist sin, and, when we fail, it is a moral failing --purely our own "fault." Those who think thus need to own Romans 7.
Which brings me to the thorny problem of Who's Responsible? Conservative evangelicals tend to place sole blame on the sinner: if a person becomes addicted to a substance or experience, it is the moral weakness of that person that brought that about. And, implicitly, this gives rise to pride: I am of sterner moral stuff, because I didn't fall prey to lust, or greed, or drunkenness.
And, it tends to us reasoning that certain sins are more serious than others. Some sins, of course, are more serious than others, but not always the ones we think!
I wonder sometimes if our blame is largely misplaced, if loving the sinner and hating the sin actually means hating the purveyor of sin, while having restorative mercy to the one ensared in the sin. This is not quite moral man and immoral society --more like, sin-prone man, and temptation-proffering society. I am finding myself far more angry at the addictors than addicts these days. I abhor the gambling industry. The whole industry is aimed at addicting those who involve themselves in it --they study the psychology of the gambler, and feed off the addiction.
AS I read the Bible, I see both Satan and Jesus operating this way. Satan feeds off weak and sinful human nature --to entice people to slavery. God's condemnation to death rests upon Satan for this (Genesis 3). Jesus is incensed in the temple (no pun intended), not at those who are buying the doves, etc. (thus "driving the market!") but at the dovesellers! HIs anger rests not on the sinners, but the purveyors of sin.
We might say the same thing for porn, alcohol, or drugs. Our anger should at least be somewhat --and I would argue, mostly, directed at the purveyors. Yet, we throw drug addicts in jail. But, at least in 2 of those three things, the purveyors are protected under the free market, and freedom of speech.
Part of the church growing to understand grace must mean that sinners sins ought not to shock us. Indeed, we understand, empathize, and seek to deliver, not condemn. But, it also means directing our anger to the right places: those who profit off the sinful nature.