"The Believing and Doubting Game"

The genre of rap music contributes to the violet attitude and behavior of its followers towards women, white people and gays. Since the introduction of rap music in the early 1980's, this obnoxious style of music has diluted the minds of young black Americans with derogatory lyrics that are offensive, discourteous, rude, and belittling, at least.
This form of music is not only insulting but its also abusive with lyrics of shootings, robberies and violent sexual acts. For instances, 50 cent lyric, "somethin' wrong with that b*^$h ( f*^k that b*^$h )." or Tec-9 f/Lil'y's lyric, " I know some niggas out the Melph that'll leave ya dead for me ... killing' is too easy."
There's a fine line between art and obscenity and this type of music is not art, its obscene and vulgar. Was the right of free speech created to protect such indecency?
On the other hand, not all rap music contributes to the violent attitude and behavior of its followers toward women , white people and gays. Some artist such as: Will Smith recording "Summertime" is a rhapsody rap recording of a young man's carefree summer day activities: such as playing basketball, hanging at the car wash, and attending a picnic. Then there's Run DMC's recording "My Addis", a rap recording of a young man's tennis shoes.
Yes, there's some artistic styles of rap music that's not abusive, expletive or insulting.