This is a very narrow view of the issue. There have been lots of different successful cultures throughout history and they were different in significant ways. Western culture is the one that you are currently living through. The rest of cultures of the past probably also thought they were the best and would last forever.
It took me 7 hours to realize that my parent reply is lexically ambiguous and poorly written. I own it, I am full of covid and operating as well as everyone told me:
My intention was to indicate at least a fraction:
There must be /some/ western culture that has been successful because it [that portion] is what humans naturally gravitate towards.
My accident was to imply that western culture has been wholly successful:
There must be some-western-culture that has been successful because it [all of it] is what humans naturally gravitate towards.
Sorry to any readers in the future, I deserve the replies I got today in this context.