You should read the Hillerman series.
And yes, many Navajo are quite intelligent while others are simple & gentle (as depicted in DW of some of the children). And many were swindled or thought “lesser” when (whites) moved in for the oil boom.
Discussion
Yes I am sure they are great people.
It is more the portrayal of white people being so nasty and mean, the show is literally anti white racism.
It's gross