I appreciate that you are willing to engage further.
While it is good to see you acknowledge that there is subjectivity involved in the appreciation of various types of music, that is only the most obvious point. I have already made another important one, which is that you (and other strident critics of rap) lump all artists together. It’s as if you heard some loud, pounding tracks, emanating from beat-up cars populated by "thugs", saw a few videos, and your mind was made up.
Now, I understand that you have a visceral dislike of the genre, and that’s fine. I wouldn’t expect you to do careful research in an effort to root out some rappers who are actually talented musicians, and have something to say. But on this very thread, just a few posts up, I suggested that critics listen to Gil Scott-Heron’s "The Revolution Will Not Be Televised". Scott-Heron was an excellent musician whose lyrics were politically powerful and important. His work was highly inspirational to early many rappers, whose work was in some ways quite different than what you typically hear today.
These are the reasons that I used the word "ignorant". I was not using it in the typical, contemporary sense. I meant that your ignorance of the nuances of the genre preclude any possibility of you arriving at a thoughtful conclusion. What you are essentially saying is that you can’t stand the music, which again, is fine. But dismissing it without understanding either its political and sociological importance, or without even gaining an understanding of the many different types and quality of artists, is ignorant.