I thought that was obvious Oddsocks, but this issue tends to generate a hysterical response, lots of shouting down for anyone with the 'wrong' views, etc.
People do have to take responsibility for the situations they put themselves in - that's part of being a grown up. The hysterical response to that sort of comment is to accuse the person of being an 'apologist' for rape, yet the comment does not in any way excuse someone who has committed rape. Unfortunately we seem to have developed a society where everybody has rights without, apparently, any responsibility.
Bringing abuse of children into the conversation is quite ridiculous when the conversation is about what constitutes rape and what constitutes consent. I noted some comments elsewhere about an 11-year old being raped - whilst it is obviously a terrible thing, it has absolutely no relevance to the conversation.
As for the cup of tea analogy? How about if I make a cup of tea for someone just because I think they might like a cup of tea. I bring it into the room and show her the hot cup of tea that's ready for her. She says no, she doesn't fancy one right now, but I say 'go on, just a little sip, I've already made it for you', so she does and before you know it she's drunk the entire cup. It seemed like she quite enjoyed it at the time - she even asked for another. Maybe I'm a better tea maker than I thought! Anyway, as she wakes too early the morning after, desperate for the toilet, she regrets drinking your cup of tea and recalls that she did say no but then drank it anyway. You sort of forced that cup of tea on her. And the second one. Thank god you ran out of tea bags.
The original question was if a woman is drunk can she have given consent. Often consent is implied or assumed - events just develop and no young guy is going to stop and say 'hey, let's have a chat first so I can make sure you really are up for it, I'll come back tomorrow and see if you still fancy it' - there's a mood killing conversation. The chances are that he has had a few drinks as well - his judgement could equally be impaired. Mistakes might be made and it's part of growing up. No means no, obviously, and the vast majority of men will accept that. The idea that you should somehow obtain an unequivocal and resounding yes when the woman already appears to be a willing participant or she would have said no is rather strange and unrealistic.
Most people in this world are decent, yet there is a lot going on at present that presents men as the enemy that society must be protected from.
Flame suit on.