Japanese criminal organizations
... for sure there was a benefit in the late 40s and even more recently there are some positive aspects
. So many have an open mind, but they don't necessarly want to have them as a neighbor
. The group presence is quite open here as you may have read.
Don't you just love the old yakuza movies... many times with a woman as the head of some part of the organization.
In some communities the public bath is still quite active and a gathering place for the general (older...) public, so (historical) emotion can run strong. These are very tight communities as well and even hard for individuals from other locations to "join in".