Dog the Bounty Hunter's Daughter Claims Her BLM Support Created Rift

Dog the Bounty Hunter let his daughter's passion for racial equality and BLM sink their relationship ... at least that's what she's claiming -- but Dog's pushing back, calling her brainwashed.

Bonnie Chapman, biological daughter of Dog and the late Beth Chapman, tells TMZ ... she believes her continued work with UnleashedTV -- a network that canned her dad this year -- is the true impetus behind her and her half-sis, Cecily, not getting an invite to his wedding.

The whole thing boiled over this past weekend when Dog's new fiancee, Francie Frane, allegedly sent Bonnie a scathing text, which seems to allude to Bonnie's continued partnership with the network.

It reads, in part, "[L]et's not beat around the bush, You & Cecily both know You haven't been invited to the wedding because your (sic) living under the same roof with people who stabbed (him), robbed, lied, manipulated, smeared his name and tried to ruin his career."

Bonnie tells us Francie is referring to Dog's canceled reality series 'Unleashed' -- which mysteriously got cut short earlier this year. Bonnie claims her dad got the boot over racial/homophobic epithets he allegedly used, which she says led to the company terminating its contract with him.

Bonnie still works with UTV on a show, "The System" -- which focuses on racial justice and supporting BLM ... which she claims grinds Dog's gears. She also alleges Dog has called BLM protesters "thugs" and other derogatory terms.

Bonnie says her passionate support of equality for all is her way of keeping her mom's legacy alive -- she says Beth always spoke up when she saw someone being wronged.

Dog, for his part, says Bonnie's allegations about him are "false" -- and nothing but a misguided attempt to derail his and Francie's wedding.

He goes on to say she and Cecily are being "groomed" by unscrupulous former associates of his -- guys he tracked down when they'd allegedly jumped bail -- and he suggests they're up to no good now.