A little background on the photo..
This photo is from 6 years ago.
This was about a dozen Japanese who held a protest against a group of inconsiderate assholes who boarded a public train and held a "Halloween train party" in 2007 and 2008.
http://www.japanprobe.com/2009/11/01...lloween-night/ http://www.japanprobe.com/2007/10/28...-netizen-rage/
The "party" was organized by a group of foreigners, and some of them brought along Japanese friends. The photos and videos posted online showed Japanese passengers who were just trying to get home, but were being annoyed by drunken assholes in costumes.
A handful of Japanese held a counter protest in 2009.
This is not a protest against Halloween. It is not a protest against the idea of celebrating Halloween in Japan. It is a protest by a small group of wackos who saw videos online and decided to hold an offline protest. (It may have worked: that year was the last time that such a train "party" was attempted.)
While these few dozen assholes were causing problems on the public transportation system, thousands of other people in Tokyo celebrated Halloween in a manner that did not mess with the public transportation system.
In the years since 2009, Halloween has become more popular in Japan. Over the weekend, the Shibuya area was packed full of people of all ages dressed in costumes and having a good time. I was one of them.
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But the OP is right about the japs.. they hate islam and know better to let that plague into their society