Just wanted to add a note that most of our cells are usually only part-way exposed to the alcohol. The rest of the surrounding tissue provides much of the pathways for nutrients, liquids, and other necessities for our cells to continue existing, cleverly regulated by the body as usual. Towards an exposed surface, most of our tissues have some sort of protection from the local environment like mucous in the lungs or the epidermal layers of the skin. If these defenses break down, the infrastructure layers also act as a means to repair or replace any damaged individual cells. Any tissue that doesn't routinely come into contact with the external environment will tend to lack the defensive features and be more susceptible to alcohol, but by the time alcohol filters to those tissues it is usually quite a bit more dilute.