The loneliness of Western life is an interesting comparison to the socially centered nature of Eastern (Asian) civilization. I think you have done an excellent job of identifying a core characteristic. This is the cost of extreme individualism. The value of that becomes, needless to say, and individual question.
Having lived also between East and West for fifty years I agree on the broad scale. As is normal the details bring a more complex vision. Having grown up in the American Midwest, my heritage is the strong individual. But early on I was fascinated and enthralled by the differences in Asian culture and society.
For me my direct connection to Asian society (Japan and China) with, now, a diverse family predominantly ethnically Asian was what I needed and knew was missing in classic American/Western culture.
At the same time I watch my children and, more importantly now, their children attempting to define themselves between East and West but also between past and future. That future needs, I think, to provide a range of social options to allow individual selection on an open social scale.