Yes. That issue is not up for grabs. It's very clear that simple intoxication is not a defence for any of the kinds of crime we're talking about, general-intent crimes. It is a defence for specific-intent crimes, such as murder, for example, but not a defence for these crimes.
The issue, however, from the point of view of complainants, police or prosecutors, is how to tell the difference. Are we dealing with a simply intoxicated person or a person who was extremely intoxicated? That's the difficult thing and a matter of expert evidence. You're not going to know the answer to that until you actually have the expert witnesses before you.