511 quality issues. 511 clothing lower quality than walmart?

I am blown away with how quickly my three pairs of 511 pants died. Terrible durability, dog water quality, and less than 300hrs lifetime.

Does anyone have replacement suggestions? Advice for doing a warranty or replacement?

Details below:

I bought two pairs of 511 "Straight Fit Defender-Flex Jean" (AGL 7477-649) and one pair of 511 "Regular Fit Stretch APEX Cargo Pant" (SDB 74434-116).

Dog water quality. I used the apex for classroom work, walking to and from class, and driving ntvs.

After two months, I exchanged due to the rear pockets just.. falling off. Thread just came apart.

The two pairs of jeans both were fine for a total of six months when I noticed heavy wear just rear of the inseam. They lasted about another month of once/twice a week wear.

Both jeans had a relaxed life doing the same as the apex, and a touch of garage work.

Im a 32 waist, and these are both 32s. No chemicals, no dusty air, no tactical work, only basic laundry detergent, no softeners etc..