Very interesting. The south is very Indian ... some of it very dangerous to go into. I'm thinking Tehuantepec, Chiapas and further down. The people are very poor.
I even witnessed a near lynching myself during a political/union rally in Oaxaca many years ago although I must say Oaxaca teems with tourists.
I really disliked Tehuantepec when I went there in the '70s. It's a "matriarchal" village or sumthin'. Got out muy pronto.
You --- what?!! --- in Oaxaca? A near lynching? Was that in the '80s or '90s?
How awful. Oaxaca was just fine by me in the '70s: great market. I especially liked the beach on the Oaxaca south coast, Puerto Angel.