you realize this is logically flawed, right?

if rap were truly an "accessory" to rap music overall there would have to be successful rap songs without a rapper or rapping (which there were, but it was in the 80s/early 90's when breakdancing was affiliated with rap).

rapping is not an accessory to a rap song.
it's compulsory.
the expressed style of rapping, degree of difficulty/intricacy, focus in lyrics (i.e. content/sentiment) varies.

the overall focus on "lyricism" from rappers i'm discussing was just another fad or phase.

rapping existed before lyricism was trendy, it exists after lyricism was trendy.

but rapping itself remains a stalwart.