John Stamos is going to bat for Lori Loughlin -- framing her as the true victim in the wild 2019 college admissions scandal, and dumping the whole mess on her estranged hubby, Mossimo Giannulli .

The "Full House" star lashed out on Josh Peck and Ben Soffer ’s "Good Guys" podcast, where talk quickly landed on Lori’s recent split from Mossimo, and Stamos didn’t miss a beat, saying his heart breaks for the actress now, just like it did years ago when she got dragged through the "Varsity Blues" fiasco ... which John claims was all Mossimo’s doing. Getty

Stamos branded Mossimo a narcissist, and claimed Lori was unfairly turned into the poster child for Hollywood elites -- and rich parents, in general -- who pay handsomely to get their kids into college.

He even remembered Lo

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