The OP looks to have a 4500 gvwr single axle trailer...or 2250 lb capacity per tire. Now add 15-20 percent reserve capacity and he's looking at a ST225/75-15 load D tire at 2580 lb capacity.
The 15" LT D Wranglers have a 2080 lb capacity....not a good fit for that single axle trailer.
Being made in the USA doesn't mean much as far as a ST tire goes. Hell at one time all ST class tires were made in the USA by our domestic tire makers.....and yes we had the same problems with them even then.
Right now looking around the net at the many different trailering websites the best bang for the bucks in a 15" ST D or E is the Providers. They've been on the road since the '10 era and are the first of the new gen higher speed rated ST tires. They started out in the equipment/flatbed trailer industry in '10 and made the grade on time and miles of service.
I just replaced four ST235/80-16 E on one of my 10k car haulers. The tires were OEM = 9+ years old and 25k+ miles. Bought them from Amazon for 102 bucks plus tax and free shipping to my home. Had my truck tire dealer mount them for 24 bucks.
Another option is sell the 15" tires and wheels on CL and buy two 16" trailer wheels and go with a LT225/75-16 E at 2680 lbs per tire and enjoy 7-8 years of trouble free service.