Really? I consider it one of the three worst films I've seen: just a celebration of excessive violence and gratuitous avoidance of due process/checks and balances, made to seem defensible only because of unrealistic movie-protagonist ultracompetence. It's a worse case of Tom Clancy syndrome than the man himself ever did.
Sicario? Did we watch the same film? I mean sure, that's the content they are dealing with-- gratuitous violence and murder is entrenched in that world and they told a story in that world. As far as film-making and story-telling goes, Sicario will probably always be a top 50 if not top 20 film for me. Also encourage anyone to check out Villeneuve's older less known movies (most of course know Arrival and Blade Runner 2049), such as Prisoners, Enemy and Incendies-- all fantastic movies.
As a caucasian male, Narcos has made me want to visit Mexico and Colombia and eat yummy food. Reading the New York Times has made me scared of visiting Mexico. Colombia seems okay though.
I'd say it's one of the safer mayor citiew I've been, given that you stay in the touristy parts. Centro histórico, La Condesa, Roma, Polanco and similar. Worst thing that happened to me there was when me and some friends were wasted and cops tried to shake us down, but we told them to fuck off and they did.
Depends highly on where you go, but then again, that probably goes for every country. Even so, if you go make sure you have a local person you can rely on, and it really helps if you speak Spanish.