This video shows former “American Idol” finalist Syesha Mercado absolutely beside herself, in tears, as law enforcement takes her newborn baby following a child protective services investigation … and the video is stirring outrage.

Syesha sobbed as she reluctantly handed over her baby daughter to Manatee County Sheriff’s deputies Wednesday in Florida. Cops insisted she surrender the child during a welfare check.

You see Syesha begging the deputies not to take her baby … then pumping breast milk into a bottle to send off with her daughter, who was eventually taken away in the back of a SUV.

The newborn is reportedly the second child authorities have taken from Syesha this year. Her toddler son was placed in foster care following a hospital visit where a doctor sounded an alarm, claiming the boy was malnourished.

In this video, Syesha asks law enforcement why they’re taking her baby girl, and she’s told it’s because she didn’t tell authorities she’d given birth while the legal battle for custody of her son was ongoing.

Syesha insists her newborn is happy and healthy, claiming she has all the paperwork to keep the kid, and saying cops should have contacted her attorney — but in the end, she lost custody.

The emotional video is sparking outrage online, with some folks accusing authorities of racism.