I agree that the pillar is overloaded and as it's a Sunrader with a 31 year old laminate floor, the camper body has sagged into and settled into the mounts. I don't know what's involved in repairing the floor in the Sunrader. Has anyone had success in this?
As far as the previous welds, the shop that did it last time didn't go all the way around the pillar and get all the cracks because there was glass and plastic in the way. I may be able to buy a few more years of use on my Sunrader if I can fully weld all the cracks and replace the windshield bond every two years.