«وَتَرَى النَّاسَ سُكَارَى وَمَا هُمْ بِسُكَارَى»
You will see people as though intoxicated, although they are not intoxicated.
The first sukārā vividly presents their condition, while the next clause denies literal intoxication. The juxtaposition explicitly warns against reading the first description at face value.
This is strong evidence for figurative depiction rather than ordinary literal drunkenness. The text itself supplies the decisive contextual clue.