Bicycle Trailer Hitch

The hitch that came with my bicycle trailer only works on the rear axle. But one side has the derailer and the other has my kickstand. So to use the trailer I have to pull off the kickstand and replace it with the trailer hitch. I would use the trailer a lot more if I didn't have to do that. So on my bike, right next to the axle, there is a set of two threaded screw points. I decided that was the perfect place to mount a trailer hitch. But I'd have to destroy the existing hitch or modify i