rap is awful
This type of statement can be applied to literally any genre of music.
Except the facts show otherwise.
I can play a game of golf listening to Rap music, and I'm missing the hole all day long.
However, when I listen to classical music, I find myself much more successful.
The brain balances your stress levels with outside sources that please the body/mind. Music is one of the biggest things that can influence the mind, and scientifically they have found "classical" music to make positive flows with your brain waves.
Rap however, does quite the opposite. Rap along with other types of music (Heavy Metal), only works out brain patterns that support adrenaline seeking hobbies, and it supports anything that causes stress levels to rise. To put short, if you are going to rob a convenient store, listening to rap can boost your goal.
So yes, Rap is awful.