Is it normal I really like a racist song?

Liking a song about racist ways of being written by a person who is experiencing said racism, as a sarcastic comment towards racism itself, is not racist.

I realise it can be confusing, but you are a good person for questioning yourself and worrying about it. :)

... Liking racist jokes (i.e. white people telling racist black jokes) is kind of... modern/aversive racism. (Terms describing the way racism manifests in a society where the norm is anti-racism, such as the US where most of the studies on this has been done.)