I agree, it's all Rap/Hip-Hop.
At first though I hated the early (nationwide) southern rap though because they didn't really have an identity yet and in all honesty (imo) sucked. I couldn't make the transition of at the time listening to Biggie, PAC, Nas, Wu-Tang, Dre, DMX etc... etc... To listening to Master P or Cash Money. I remember I was in like 11th grade when Juvenille's "Ha" came out, up in D.C. we laughed so hard at that song and thought it was really a joke. Same with Mystikal, we clowned him too. Lyrically and production wise they weren't up on the level of most of the major artist at the time. Same with the Hot Boys, if you listen to the production on Bling Bling it's terrible, same with Lil Wayne's early stuff like "the block is hot" (a mannie fresh beat too I think). I gave them a chance but they sucked imo so I can see why people never gave them a second chance. They all have grown and got better (except for Master P ...lmao) but some people still go off of first impressions. However Outkast and Goodie Mob always got my respect from day one. There's WAY more southern rappers I respect and like today than 4-5 years ago or so.
A lot of the southern Rap today though is terrible... Franchise Boyz, Young Joc, Young Bloodz, D4L, Lil Flip, Paul Wall, Yin Yang and good ole MIKE JONES!! If it weren't for the different names to me they'd all be the same rapper...lol Sure they can make the club/flashy dance song but what else can they do? I think that's why a lot of people dont respect the south.
Truth be told people up north and out west view southerners as dumb, it's a sad stereotype but a large amount of people actually believe that. That can also have something to do with it.