This is not true. The game doesn't have to touch on this topics to tell Vs story but they do touch on climate on the news, cops are very trigger happy, religion is present in the game and you go to a church as part of a mission and there's a whole sect obsessed with cyberware that does judge everyone else constantly throughout the game, including mutilating a monk that refused to get augmented.

Well the cops are corrupt and there are clearly tribalistic behavior. Racism is a type of tribalism. I don't know how racist arasaka is. Do they want to keep their bloodline "pure"? So why wouldn't a corrupt police force attack in the interest of racists? There might be a lot of racism for all I know.

How do you know most of this isn't true just out of scope of Vs vision he is pretty laser focused on the brain cancer quickly replacing his personality and multiple threads of his own drama enough so he's not as interested in larger social issues.

Forgetting the bird flu?

It would be pretty weird for the game focused on a particular city to focus on global issues