Why the Left Hates Japan and Not China or North Korea

My name is Daniel. I was an English teacher in Seoul, South Korea, and am now a writer who has
published three books including South Korea: Our Story by Daniel Nardini.
                            The Korean political left loves to demonize Japan and everything Japanese.
In their view Japan is the most evil of all nations (after maybe the United States). They emphasize
that Japan occupied Korea from 1910 to 1945, committed terrible atrocities (undeniable), and in 
the Korean left viewpoint have not sufficiently “atoned” for their past deeds. Yet when it comes to
the People’s Republic of China and North Korea, the Korean political left seems to have a rather
short-term memory and a blank spot. The Chinese and North Koreans committed truly horrendous
atrocities against South Korea, and to this day North Korea has continued its sick behavior of
committing attacks against South Korea. China claims part of South Korea’s territorial waters and
has cut Chinese tourism to South Korea by at least 20 percent for South Korea accepting THAAD 
to protect itself from North Korean missiles. Since 1945, Japan has done NOTHING to South Korea,
so why is there far more hatred against Japan by the political left than against China or North Korea?
because North Korea is seen as somehow the “long lost family” who must be brought back into
the household. China is somehow seen as no real danger despite its growing military and claims 
to the East China Sea. If anything, there should be a military alliance between Japan and South
Korea to protect themselves against both China and North Korea. former South Korean President
Park Geun-hye understood this and is why she concluded the Comfort Women Agreement (which
the left absolutely hates), and signed the intelligence sharing agreement with Japan. The sad
thing is that the left is willing to undo these agreements and leave South Korea in a vulnerable
position. It is sad that ideology trumps common sense and democratic principles that both
Japan and South Korea share.