This is my summation of rock vs pop genre’s.
The rock genre came from blues which came from jazz/spiritual pieces, which came from Classical music. Blues started in the 19th century (1800’s) when the Africans were employed as slaves for 1st/2nd world countries. The Africans struck back with their music, and this is what set them apart from being slaves. This is what stopped the slave trade and played (hur-hur-hur) a part in the enforcement of the no slavery law.Pop music, as a full genre started in around the 1950’s, 150 years after the blues genre originated. Although, you could argue that from the 1900’s onwards, Rock was pop, as pop is an abbreviation of Popular, or Popular music, and Rock was popular during those times. So to sum it all up, we all listen to pop music, because Rock is popular and so is Rap/RnB/Dubstep etc etc.