Also from the blues! But [usually] in the pocket instead of syncopated.

But definitely. Especially modern pop country (gag) as even all the themes are the same! Red truck, light beer, America. Am I missing anything?

Anyway yeah—all the way back to Hank Williams you could form the basis of a case that any song that progresses Gmaj - Amaj - Dmaj on an acoustic guitar with a mournful vocal tone and downtrodden lyric content is a "rip off".