Not even dude, if you don't like Opeth's death metal vocals, then you don't understand Opeth. Growls are expressions of brutal anger, whereas clean singing expresses desperatism and depression. It's apart of the emotional spectrum Mikael tries to emulate with music; to do away with that is to do away everything that makes Opeth special. It's all apart of the great experiment gone incredibly right, and it's called Opeth.
I say nay to eliminating Opeth's brutal growling vocals, that is apart of the beauty of the music...