Red shirts are Lao Isan or Thai Isan. they're power of late Prim- Thaksin Sinnavath. They eat Khao Neo and Paderk and Tum mark hoong as same as LAOTIAN.
Don't just call them Lao Isan, they like to be Thai Isan. Back to before 80's, Thai Bkk call them AI Lao hua khoy.
Smarters, more Educated as before, and Now, They the one who determine who will be their leaders or their Priminister. back in the old day, only Bangkokians can determine, not any more, Brothers.