Conor McGregor says there’s no way he can be racist … 'cause he’s half black -- from the waist down.
McGregor went crazy at the fight event in Brooklyn Thursday night … saying he loves black people, especially black women and busted several crotch thrusts to prove it.
Before that, he blasted Floyd Mayweather's pal 50 Cent saying they are both broke bitches who pretend to have money.
In fact, he gave Floyd a copy of Jay-Z’s new 4:44 album … and told him to study it to learn how to build a real empire.
He then claimed his coat was made of real polar bears — ‘cause he’s so damn cold.
More to follow tomorrow in London!