Ray J has responded to Kim Kardashian and Kris Jenner 's defamation lawsuit ... and his rebuttal is as stunning as it is brazen.

TMZ broke the news ... Kim and Kris were fed up with Ray J claiming they're the subject of a federal criminal racketeering investigation ... and slapped him with a suit for defamation. Getty

On a recent livestream, Ray went through the lawsuit ... and said they were trying to make him a "slave" ... and prior millions they allegedly paid him as hush money went unmentioned in the paperwork.

Ray J once again claimed he was pressured by the family -- namely Kris -- to "do dirty things," which allegedly included filming multiple sex tapes with Kim.

At one point ... Ray J says the duo is "trying to kill the Black community" and "people deserve to k

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