A familiar foe is coming for Floyd Mayweather, but it's not Logan Paul or Conor McGregor -- PETA is going scorched-earth on the boxing legend over the $18,000 mink car seat he got for his grandson ... calling it a "monstrosity."
TMZ Sports broke the story -- TBE recently had a one-of-a-kind car seat installed into his 2022 Rolls-Royce Cullinan ... which was made with real fur and customized for baby Kentrell Jr.