I'm going to make two assumptions here. I know that sometimes things shake out differently, but I feel like LW would have said if it was an unusual case. So here are my assumptions:
1. Either this uncle is married into the family, and therefore married, in which case his spouse should know; or this uncle is a blood relative, in which case he may very well make the moves on some other close relative. Because no amount of alcohol makes normal people start kissing their nieces and nephews. That's not something that just happens as a side effect of drunkenness.
2. This uncle is closer in age to LW's parents than LW, and was already an adult or nearly when they were born, which just makes this more inappropriate. Not that point 1 isn't enough!
So... yeah, I think LW needs to seriously consider telling people. How many predators act for years because everybody says "Well, he was drunk and it was just one time, I don't want to cause a family fight"?
If the rest of the family is hurt, that's Uncle's fault - LW is not to blame for telling the truth about what happened.
no subject
1. Either this uncle is married into the family, and therefore married, in which case his spouse should know; or this uncle is a blood relative, in which case he may very well make the moves on some other close relative. Because no amount of alcohol makes normal people start kissing their nieces and nephews. That's not something that just happens as a side effect of drunkenness.
2. This uncle is closer in age to LW's parents than LW, and was already an adult or nearly when they were born, which just makes this more inappropriate. Not that point 1 isn't enough!
So... yeah, I think LW needs to seriously consider telling people. How many predators act for years because everybody says "Well, he was drunk and it was just one time, I don't want to cause a family fight"?
If the rest of the family is hurt, that's Uncle's fault - LW is not to blame for telling the truth about what happened.