Yes, really.
You're right though - the lack of inhibition was due to the booze.
Just like some girls get completely raunched out after the 8th vodka sev. Or some guys go all Vin Diesel after a coupla Jagermeisters.
But slutty chicks and knuckleheads who get way in over their heads do not, for the most part, start spouting anti-Semitic gibberish.
You're right that the drinkin' has something to do with inhibitions. What those inhibitions were about is what's of note.