Erik Spoelstra -- the only Asian-American head coach in the NBA -- ain't buying the notion that the massacre in ATL wasn't racially motivated ... and he's really pissed off about it.
The Miami Heat head coach -- who's of Filipino descent -- sounded off during a media session Friday ... saying the shooting incident which claimed 8 lives is nothing short of "sickening."
"Look, I’m Asian American, I’m proud to be Asian American, and seeing what’s happening with another outright form of racism and hatred really is sickening," Spoelstra said ... "It breaks my heart.