Meek Mill insists he had nothing to do with 2 people dying outside the place he performed ... and the venue claims the people suing are a bunch of racists.

The rapper filed new legal docs defending himself in a wrongful death suit filed against him ... alleging his "thug" fans incited the violence at his December concert outside the Oakdale Theatre in Wallingford, CT.

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In docs obtained by TMZ, Meek calls BS on the allegation his murderous lyrics incited the violence. Live Nation, which runs the Oakdale, is also being sued -- claims the victim's family has stooped to racial stereotypes by calling the fans "thugs."

As we reported ... a hail of bullets killed 2 and injured 2 outside the Oakdale Theatre.

The plaintiff's attorney, Joel Faxon, tells TMZ he's confident "the families of those shot at the concert agree Mr. Mill meets the definition of a thug." He also said Meek owes concertgoers a duty to provide a safe concert experience and warn them of past violence at his events.

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