Why so many haters on Weezy?

Ima fan of real rap like Lupe, Em, Nas, Jay, 2Pac, Biggie, Ghostface, Raekwon & other great lyrcists. I know he's not the best and I'm not a huge fan of Lil Wayne but why do people say he's ruining hip hop. His lyrics are pretty good...he can rap and the beats in his songs are sick. I think Soulja Boy and Waka Flocka can't rap but I like some of their beats. So why hate Weezy?