Do you think her birth place status will work to her advantage in OK?
Maybe but wasn't she born and raised in Oklahoma City? That's the only decent concentration of Democrats in the state so perhaps it won't really be a big advantage for her when it comes to swinging the entire state to the left.
Ironically, when Warren was young the "big troika" of Oklahoma (Oklahoma, Cleveland, Canadian) was a deep red island surrounded by a deep blue sea. These are the county maps for 1968, 1976 and 1992:
The last time the "big troika" voted Democrat was the landslide election in 1964, and even then those three counties were less Democratic than the Southern half of Oklahoma.