Speaking of ignorance...
> [rap] literally incorporates and uses so much jazz.
It incorporates a lot of jazz via sampling, but otherwise unless we're talking about freestyling then it's missing the central component of jazz.
No it doesn't. Rap uses a lot of the same vocal licks that jazz uses, and uses a lot of the same rhythmic ideas too.
Also, rap's focus on the improvisational aspect of their work is very much related to jazz. So many of the best rap songs in the world were partly improvised on the spot. You even have rappers like Jay-Z and Lil Wayne who don't write down their lyrics, they just go into the booth and rap.