No.

Malaysia has .08 blood alcohol for sinful driving but Turkey has .05.
Other Islamic roads have sober, pure drivers ( peace be upon them).
US pilots can sin up to .04 but Oz only .02 . This is while flying a craft through the air and sky police need years of training to get the tube through the cockpit window.

<<In most cases it is. But then, almost everything we do is sinful>>

I agree. All actions undertaken by individuals will have some flow on effect that will lead to a connotation, that one will not connect with, see, know about or understand.

<<Drinking alcohol is not itself a sin. However it may lead to sin, especially when consumed in large quantities.>>

When putting forward an argument, there is no 'however'. The use of however, undermines the initial elements of one's argument. For example, it's better to be cautious and simply avoid consuming alcohol and avoid any sins related to its consumption.

<<Please define SIN for me. With the right definition I might be in the clear.>>

Note no one can ever be in the clear, but to provide you with a definition:

Definition of sin

1 a : an offense against religious or moral law
b : an action that is or is felt to be highly reprehensible it's a sin to waste food
c : an often serious shortcoming : fault
2 a : transgression of the law of God
b : a vitiated state of human nature in which the self is estranged from God

https://www.merriam-webster.com/dictionary/sin

<<As for the question, 'Is drinking alcohol a sin', I rather suspect you are not reading the Bible to moralise on your own life but rather to seek to interfere in others' lives, to mind others' backyards.>>

It's important for reflection in life, with a clearer direction. Avoiding sin will not bring change. It will bring side effects, like on this discussion page, (domestic violence from alcohol consumption). So I'm not telling people what to do, simply to realise what sin is regarding alcohol consumption and its implications.

Many do not realise or refuse to accept the concept of sin in principle and reject its pure existence. This is to avoid facing up to a form of what may resemble some form of truth. This element frightens many and is avoided as a result.

https://www.youtube.com/watch?v=WtJgMViTbNo

NathanJ,
Thanks for taking my comments so well. I was a bit hard.

Is Mise,
An enjoyable film thank you.

Not a sin, but can cause a lot of harm. Based on that alone I understand people abstaining from alcohol. The world and all it's societies have felt the negitive effects of alcohol. That said I would say drinking in excess is the sin.