I agree with you to an extent and I understand your passion. I've found that arguing about music on the internet is the most worthless thing you could possibly do.
Unless you're on a dedicated board, the chances of having someones tastes line up with your is next to nil. On top of that, music is, to me anyway, the most subjective art form of all. We are just NOT going to appreciate an artist on the same level, even if we both like them.
Lastly, Music is about youth. I'm 38 years old. I've been listening to hip hop since the early 80's (my Uncle was a huge hip hop head who got me into the genre young). My favorite artists are tied to my formative years and early maturity. I was a scholar and even though I didn't like everything I heard, I was well versed in it at least.
You age out of that eventually. Now I rarely if ever get the time to truly appreciate MY music, and when I do I mostly enjoy it on a nostalgic trip. I rarely if ever seek out anything new and prefer to stick to my favorite artists. Because of this, I don't argue about hip hop on the internet anymore. I'm NOT going to like newer music for the most part. I also know that many people my age share the same experience and opinion. So yes, it is fruitless to argue with us. We're old.
All i'll say in closing is the following: