"Love & Hip Hop: Atlanta" star Benzino -- Amber Rose's Slut Walk Is Just A Money Grab

Amber Rose is a "queen slut" for shamelessly trying to cash in on her Slut Walk ... so says "Love & Hip Hop: Atlanta" star Benzino.

Benzino's been feuding with Amber for putting on the event he clearly thinks degrades women. Check out the vid ... Benzino calls the Slut Walk nothing but a marketing ploy before unleashing on Amber.

Not helping matters? Benzino's baby mama, Althea Eaton, and their son were at the event.