Shikatanai Attitude

Can someone tell me what is this ''Shikatanai'' attitude or Shikataganai? This attitude exists mostly on those of Japanese descent but also, within mainland Japanese.Shikata ga nai (仕方が無い), pronounced [ɕi̥kata ɡa nai], is a Japanese language phrase meaning "it cannot be helped" or "nothing can be done about it". Shō ga nai (しょうがない), pronounced [ɕoː ɡa nai] is an alternative.

The phrase has been used by many western writers to describe the ability of the Japanese people to maintain dignity in the face of an unavoidable tragedy or injustice, particularly when the circumstances are beyond their control. Historically, it has been applied to situations in which masses of Japanese people as a whole have been made to endure, including the Allied occupation of Japan and the internment of Japanese Americans and Japanese Canadians. Thus, when Emperor Shōwa was asked, in his first ever press conference given in Tokyo in 1975, what he thought of the atomic bombing of Hiroshima, he answered: "It's very regrettable that nuclear bombs were dropped and I feel sorry for the citizens of Hiroshima but it couldn't be helped because that happened in wartime."
In Asian American Women: The "Frontiers" Reader, author Debbie Storrs states:

The Japanese phrase shikata ga nai, or "it can't be helped," indicates cultural norms over which one has little control... This notion of suffering in part stems from shikata ga nai: failing to follow cultural norms and social conventions led to a life of little choice but endurance of suffering.

The phrase also can have negative connotations, as some may perceive the lack of reaction to adversity as complacence, both to social and political forces. In a Business Week article, a Western businessman says of Japanese people:
He encourages Japanese not to succumb to the shikata ga nai mentality but to get angry and start behaving like citizens. "Japanese people listen to me because I'm always pushing what the possibilities are and how things can change... to ensure positive economic and political prospects..."

I wonder if why i have that mentality even if i am just a Sansei or i was born not on Japanese soil but on Philippine soil, which many Filipino-Japanese doesn't care about internment since they never experienced it nor never learned of it.