Grinding noise when I turn right?

I have a 2011 Ford Fusion and recently when I turn right I hear grinding noise. It's very similar to the sound in the YouTube video. Any idea? I checked the backplate of the rotors they re fine. Sound is coming from the back.

Hi initial thought is a wheel bearing.

It sounds like a wheel bearing - (for the first time ever I had to give Mrs Bear face a thumbs up!)

See video for similar noise

It's the damn backing plate. Bear face doesn't have a clue as usual. The rotor may be hitting the backing plate on the inner area of the rotor.
With it being as loud as the video there has to be rub marks.Jack the wheel up and see if you have any play in the bearing first. Then take the tire off and use a flashlight to check the clearance between the backing plate and the rotor.
usually you can see the close spot ad use a screwdriver t gently pry the backing plate away from the rotor. Take the caliper and rotor off to check for rub marks if you can't find the spot any other way.
Just in case you meant you checked the front rotors and there's a possibility you have drums in the rear… I've seen drums get rust build up on the outside of the drum and the backing plate rub on the drum where the backing plate goes into the drum groove on the outside diameter inner edge.