Graffiti is a visual art used to express ideas and feelings. The art is characterized by its creators as used place and space rare. in  Brazil and Argentina graffiti art has won important spaces in society in general, your creator not are gruops of vandalism, but others countrys as thar the graffiti not is art, is vandalism for example in Tegucigalpa even risk their lives by painting.
This Art in some country is legal and other not.

Maria Rondon, Bag hair and racism in Colombia.

The racism is a practice os social exclusion, is bag for society. Colombia is a country that have raice black, they came in year 1600 more or less. But in Colombia there this practice. In Colombia more that racism have a problem regionalism

Maria Rondon could say that colombia and venezuela have similar situation for this reason the films "bag hair" meets two objetive, first invites society the change and criticizes the situation.

A group of people " not known a subculture especific and does not belong, but want to imited ", this is appropriation culture.
For example : The gansters Bangko copied the style of mexican gansters, they ( mexican gansters ) used your style for perform activity criminal, but these men of Bangkok are not criminal.
Finally I do not think that mexican gansters change your style of life because others are imited.