People assume that the meaning of a song is vested in the lyrics. To me, that has never been the case. There are very few songs that I can think of where I remember the words.
The earliest paintings I loved were always the most non-referential paintings you can imagine, by painters such as Mondrian. I was thrilled by them because they didn't refer to anything else. They stood alone, and they were just charged magic objects that did not get their strength from being connected to anything else.
Agressive music can only shock you once. Afterwards its impact declines. It's inevitable.
I often say to people that producing is the best-paid form of cowardice. When you produce things, you almost always get credit if it's a good record, but you hardly ever get the blame if it's not! You don't really take responsibility for your work.