Do you think that the only factor to that variable is the usage of social media?

is the article more or less saying that? is the west and our way of living perfect other then our social media use.

I dont think so, but seeing how chinese people under those circumstances view their lives and satisfaction with their social lives, etc would be one more data point in a complicated problem

Definitely. They have to.

We as a society need to stop associating happiness with good mental health.

Sadly contentment doesn't sound as good, but is a better measure of emotional state.

For those who disagree with me speak up, just dont downvote, or I will assume that you are mentally weak and unable to back your emotional outburst.