Play video content EXCLUSIVE 7/26/18 TMZ.com

There were intense protests Thursday night on the Hollywood Walk of Fame ... specifically next to Donald Trump's star.

The battle was drawn early ... Trump supporters on one side, opponents on the other. Singer/songwriter Joy Villa, a Trump supporter -- who wore a pro-life dress with a fetus emblazoned on it to the Grammys -- sang the national anthem.

Two protesters then squared off -- arguing over use of the n-word and that's what triggered the brawl.

You see one protester kick another squarely in the head as he's on the ground.

Miraculously, no one got arrested.

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