His job was to clear a space for the paddleboat. They were assholes not to move. And when he's telling them to move the dude sucker punches him. And then outnumber him and beat him.
And the one white dude owns a mini mart and allegedly posted. I don't need your money. White dollars are superior. Sounds like some racism might be present if true.
Here's the problem, if the alleged post is true (and sure, it wouldn't surprise me at all if he did to it): It may or may not have been a factor at the time. Drunk rednecks will start a fight, race doesn't matter in that regard. Race may not have been a factor at all when it started. But when it became a 30 on 4 or whatever fight with white women getting beat by men for no reason, it wouldn't be hard for race to become a factor after the fact. It was definitely race motivated for the blacks. So while it may have just been drunk neckism when they started the fight, it became "racist" for them too when the entire zoo joined in and blind sided people who had nothing to do with the fight. Cause and effect.
It's not dissimilar to how, many of us Gen X (particularly at the bottom of Gen X) never thought about race or gave thought to racism 20 years ago. The result of the white guilt liberal movement and making excuses for riots and lootings and telling them they're racist just because that actually created far more racism than there was before.