Well, I'm talking strictly on an aesthetic level. I acknowledge that rap takes a certain dedication and skill. What I have been coming to believe is that on an aesthetic level, rap sucks. I think that lots of people like rap for the wrong reasons and without really thinking about it.
What aesthetics? Does it make audible noises in a way that is pleasing to my ear? That is all music is about.
If you think about it, rappers always use the lower vocal range. You never get the human performance thrill of seeing someone hit a high note with rap because rappers are...too cool for actual singing. Too masculine.
99% of the "singers" you mention don't hit and sustain those high notes. They use autotune. They use it in the correct way: pitch correction. Not that that matters. Rappers evolve from spoken word and into an evolved scat; something pioneered by jazz.
Rap has room for many more lyrics than singing, but it turns out that most of the lyrics suck and are uninteresting.
Sure, if you're only experience is music put out for mass consumption. There is a reason we remember Miles Davis over other jazz trumpeters: he was at the top of the class. The "everyday" jazz guys are forgotten to time. People remember Tupac, Biggie, Rakim, and such because they were truly great at their craft.
With a lot of rap I get the feeling that it is something that you should like rather than something that is actually likable.
Most popular rap is made to dance to in the club. It appeals to a specific, popular need. Something easily accessible to move to that doesn't need to be listened to. Club bangers, as they are called, are not what you should judge rap on. Should I judge country music based on Taylor Swift?
Liking rap sort of positions you as not a boring middle class person, but as edgy, cool with oppressed minorities.
That sounds particularly racist. Why can't someone like music because they find beauty in it? Why can't the just like it. I don't like pizza because I want to fit in with Italian Americans, why would music be any different?