Toxic work environment - Anonymous employee Inspur Group Employee Review

I have experienced quite toxic work environment. There's no transparency when it comes to communication. You have to make an appearance to the office, even though there's no collaboration (e.g. no meetings, no interaction with peers). Inspur is a Chinese company so they heavily nominate Chinese employees, it's language and culture. I witnessed a peer who was fired on the spot and replaced by Chinese. Peers have no respect to others at the office, making a lot of noise in Mandarin throughout the day. Management heavily pushes cross-training, so they learn your job, then replace you. How is this ethical?