>>1653356These racks are generally a last result for cars that cannot properly and safely fit a roof rack or the owner is so limp wristed she cannot lift her bike above her chest to put on top of the car, or the owner drives a massive SUV where roof clearance may be an issue with bikes on the rack.
Yakima and Thule both have trailer hitch compatible racks that pivot at the base so the user can gain access to the trunk. Your photo looks like the design will cause damage to the actual car and looks like chinesium shit in general plus you lose your rear view to some extent.