Social class

Underclass:
Dirty, unruly, worthless

Working class
Blue collar, common

Middle class
Community,

Upper class
Eccentric

1) Stiff upper lip, austere - Upper class
2) Hardworking - Working class
3) Violent and Criminal - Underclass
4)  - Middle class

Conflict between regional, man from "Up North" is therefore working class or underclass, due to region. The is therefore acting vulgar, talking about sex openly and groping the woman, uneducated because of his homophobia and narrow mindedness. Against those from "Down South" as they're upper class or middle class, shown by their stiff upper lip and sophistication