Alcohol is irrelevant, though a word to the wise in the matter should be sufficient to warn men and women not to mix sex and alcohol.
If a woman consents to sex, whether or not she is drunk, but if drunk then assuming that she voluntarily placed herself in the drunken state, then there is no rape … and by voluntarily placing herself in the drunken state means that she chose freely to drink and she was not forced alcohol against her will or unknowingly slipped a drug.
If a man knows she is drunk and takes advantage of her inebriated “easiness”, he may be a bit desperate and perhaps unable to differentiate between sex and love, etc., but he has committed no crime if she says “yes”.
If a woman says “no” or does not say “yes” to sex, whether or not she is drunk, then if a man has sex with her, that is rape.
There is no “neutral” in the matter – lack of consent does not mean “yes”.
And, of course, “no”, always means no.
One says “yes” to sex … or it is rape.
So it behooves the man to be very sure that she has consented to sex, that she said “yes” explicitly or, absent of explicit verbal consent, let her body do the “she pulled me into her room, ripped off my clothes and hers and pulled me onto her” obvious consent “talking”.
Because, all alcohol being irrelevant, if she doesn’t obviously consent, it’s rape.
It really is that simple.