Would appreciate the groups thoughts on tandem axle issue

Not to sound trite or accusatory, but was the axle like this when you bought it? Did you look? How level or flat is the trailer behind your truck?
Yes that axle is bent to _____ and the fix is easy. New axle(bolt on) and some new tires.
Didn’t see where you live but quite possible it got towed nose up from the mfg to the dealer much further than you’ve towed. Almost not possible to wear a tire that bad in that few of miles.