Getty Composite

Bad Bunny ’s been getting slammed for sitting through "God Bless America" at Yankee Stadium recently -- but "Marlins Man" tells TMZ everyone needs to calm down... because the guy didn’t break any rules.

The sports superfan (real name Laurence Leavy ) says he’s pissed people are ripping Bad Bunny for this ... insisting the rapper had every right to sit, it’s not against the law, and honestly, the world’s got way bigger problems than this. X/@marlins_man

Marlins Man says he was sitting right next to BB when it all went down and, sure, he told him to stand -- but Bunny’s camp had their own reasons. His handler even brought up that 'SNL' monologue where BB joked about Americans needing "4 months to learn Spanish before the Super Bowl.”

But Bunny himself stayed qu

See Full Page