Tire Bubble problems of the 2005 Jeep Grand Cherokee

In February 2013, I bought 4 copper tires, cooper discover atr owl 235/65/r17, dot ut81 c8e 0411 for my 2005 Jeep Grand Cherokee laredo. Factory direct tire, 22617 76th Ave w, edmonds, wa 98026, sold the tires. Around middle of June 2014, someone brought to my attention that all four tires on my Jeeps have cracks on sidewalls. The tires only had 8,000 miles on them; those are 50,000 miles tires. It seems that many consumers cannot see those cracks and the dealers and the manufacture get away with that; if consumers noticed those cracks, at that point, cooper just offer them a prorated amount based on tread wear. The more tire gets worn, the less money cooper had to pay. I believe it is a very dangerous game as people lives is at the stake here. People drive kids in those cars without obvious bubble or separation because it is hard to see those cracks on the side of the tire. The way that this tire is built compare to other tires, this tire eventually will have those cracks. The belt in the middle of the tire that includes cooper name and logo is a separate rubber belt between the tread and the rubber above the ream. On many tires this side is one solid piece, but not on this particular tire. It looks it is manufacturing/ engineering defect that belt in the middle of the tire eventually will start separate itself due, for example, to weather conditions, such as very hot weather. The tire like that would not pass quality control if it were tested in accordance with new standard for tire manufacturers. Thus, they fail to comply with the requirements of federal motor vehicle safety standard no. 139, "new pneumatic radial tires for light vehicles. " there is another issue with cooper tires, they are not correctly reflect mileage they claiming in the warranty for their tires. For example, my Mazda 6 had arizonian tires, which were manufacturing by coopers, which suppose to last 65,000 miles but were between 3 and 4/32 after 40,000 miles.