Again, there are different types of crimes. 99% of crimes are general intent crimes - and voluntary intoxication is not a defense to those crimes. Rath is charged with the 1%, specific intent crimes. For specific intent crimes, the reason why you do something is one of the elements of the crime and for those, being wasted is a defense.
The most obvious example is first degree murder. The difference between first degree and second degree is that specific intent - cold, calculated. Killing someone in a drunken rage is second degree. Planning it, thinking about it, making a decision to do it and then having time to cool down still go thru with it, that’s first degree.
First degree - specific intent
Second degree - general intent.
Make sense?