Is this rude?

Erin
I'm so fed up with where I work right now. I hate the environment. It's a Korean own jewelry company. And I can't stand the way they pay me and it's not a community based environment. There is a lot of bickering in the office due to the family dynamics. The president treats the wife and child like shit. 
I wish there was an hr so I can report the things that are said in the office. 
Is it rude that I don't acknowledge them? I dont say good morning or have a goodnight after work?