Would you say the Scots-Irish in the south are like this Jesse, based on your experience?
Depends. There are various kinds of southern dudes.
1. The blue collar types are not like this at all, they are more like MMA Fighter Chael Sonnen. Usually these guys openly support Trump, are straightforward with you, will try to bust your balls, and joke around with you. You find them in smaller towns down south and rural areas as well as occasionally in suburbs of big cities.
2. The more upper middle class type of southerners are somewhat more passive-aggressive but they ignore you if they hate you. They do cling a lot to the church life.
3. In cities like Atlanta, you find a lot of passive-aggressive southerners but find that they are often transplants not from the city itself, usually yankees or Californians.