Every civilization that has ever existed has ultimately collapsed. History is a tale of efforts that failed, or aspirations that weren’t realized. So, as a historian, one has to live with a sense of the inevitability of tragedy.
It was a Greek tragedy. Nixon was fulfilling his own nature. Once it started it could not end otherwise.
I think a resumption of the Cold War would be a historic tragedy. If a conflict is avoidable, on a basis reflecting morality and security, one should try to avoid it.