I almost feel like there should be a traffic law that requires sedans to park frontside in a large parking lot.
Cars already in the driving lane of the parking lot have the right of way, but trucks and SUVs parking around the sedan (these days, often having tinted or black windows) renders it physically impossible for the driver to properly see… and yet the car that is backing up is required to yield to cars that are already in the lane… which are invisible to them.
I drive a sedan and I’m just in the habit of parking frontside. I’ve never had a collision but in the past I’ve had two close calls in the parking lot and I can honestly say I don’t know what I could have done differently to prevent it from happening other than not needing to back up in the first place. There is no way you can gradually ease out of the lane to see without partially sticking your car into the lane. If there is a truck/SUV with black windows next to you, you simply need to back out the whole way because you are blinded the entire time. Gradually easing out helps any oncoming cars see you as you’re coming out, but those cars technically have the right of way. You have to yield to invisible cars.
What we really need is a built-in trampoline for cars. When it is time to back-out, we activate the tampoline, and it launches our car into the air and onto a landing zone, and then we can exit the parking lot.