I don't know too much about race relations in Guyana. I never been there. Like I said my dad is an Indian from Guyana. He's one of those whose people came over involuntarily as a slave, indentured servant, whatever you want to call it. I don't know much of this is true, but the story goes my great-grandfather was set up in India by some white men who offered to show him someyhing or sell him something and lured him and his wife on to a boat and took off to Guyana.
From what l hear from him, he grew up dirt poor and lived intermingling with black people and he always had black friends growing up. And he married my mom, a black woman (she's not from Guyana). His sister married a black man (he's got a lot if siblings). I don't know the whole family. Just those few that moved to America. There's never been any racial tension based on our family being half black at all. We were never treated any different by our Indian relatives here. My female cousin who grew up in the same locale married a black man and her parents like him and have no problem with it. However, I do know that that colorstruck lighter skin worship mentality shyt is very present there because I've heard aunts, uncles, and cousins talking about "fair-skin" (that's what they call light-skinned there) in glowing terms. I even had an uncle they called Fairy because he was so light. But he hung himself, so being light-skinned didn't work out that well for him.
Growing up in America being half black and around blacks, my siblings and I pretty much just grew up acculturated as black Americans.

All 3 of us are married to black people. I honestly don't relate to Indian people at all because I don't really know any and wasn't around them other than my aunt, uncle, and cousins who lived nearby. My dad doesn't speak any language but English and completely lost his accent by time I was born.
I came across this hilarious picture of a bunch of my uncles in Guyana in the 70's recently.