Eric Dickerson is urging Bad Bunny to pull out of the Super Bowl halftime show if he is, indeed, not a fan of the United States ... saying the "Tití Me Preguntó" crooner should straight up "keep his ass where he's at" if he truly feels some type of way about the Red, White and Blue.

The NFL legend made his opinion loud and clear during a chat with a photog out at LAX on Monday night ... saying he's "heard some stuff" Bad Bunny's said about America -- and if it's true, he'd rather anyone else play during February's big game. Gallery Launch Gallery Getty

"I'm from the U.S.," Dickerson said. "I love my country. And if you don't like the United States, just get your ass out of here and don't come over here."

When Dickerson was reminded Puerto Rico -- where Bad Bunny's from -- i

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