>>96481003
I have been thinking about that one particular scene from the movie and how it's equally out of place and faithful to the source material.
Yes, of course elves can be alcoholics, and they are known to drink and party hard in many settings.
For Tolkien specifically, there is a scene in the hobbit book and in the hobbit movies in which some elfen guards got shitfaced, which allowed Bilbo and the dwarves to sneak past them. So, in this instance, that extra scene from the movies breaks lore.
At the same time, elves in the Sil are described as immune to diseases, and as long as their spirit is intact, their bodies heal quickly and barely tire. So, in that sense, that scene actually works when we take the Silmarillion as inspiration.
However, this entire idea of elvish resilience being extraordinary, as long as their spirit is high, is a uniquely Tolkien idea. So, you can't just copy it without copying anything else.
For something homebrew, making it that all Fortitude saving throws (or whatever the system uses for that, physical resilience) by elves are rolled with their Willpower instead could be fun.