Alignment confusion

See if you can also get some pics of under the back of the car.
Where that hitch ties into, and the axle that goes across.

according to this it has independent trailing arm rear suspensionā€¦

Still, if the back bumper is bent and thereā€™s a hitch attached the frame back there could have been compromised.

With IRS trailing arms, I doubt a hit would affect both rear wheels the same way.

Unless that bump and/or trailer hitch attached to the center of the frame structure both arms are mounted and pivot fromā€¦ Not rocket science so looking at the frame and stuff to see if anything is bent should quickly eliminate or prove a structural issue. Otherwise itā€™s over weight and/or sagging rear springs.