A while back, my husband was ranting that I was to blame for his drinking, that I was forcing him. Interestingly it came just after he'd announced that he'll do whatever he wants and I can't make him do anything.
Can't have it both ways.
So I calmly asked him if he'd like a cup of tea. He looked at me like I was crazy, but said "no". I then asked him if I could make a cup of tea, force open his mouth, pour it down his throat and make him swallow it. He said "of course not!"
Well, I'm not buying vodka, forcing open his mouth, pouring it down his throat and making him swallow the alcohol, either.
So now whenever my husband tries to blame me for his drinking, I offer him a cup of tea.
And if I start feeling in any way responsible, I make myself a cup of tea and consider how I might be able to force him to drink it while sipping it myself.