The comment about thin sidewalls may or may not be relevant as the sidewalls on all road tires are made thinner so as to enhance the ride quality of the respective tire. Remember all the grief folks had with the Michelin XRV tire and its zipper type failures that Michelin tried to dis own.
With that said all tire manufacturers build with thinner sidewalls.
Another thing that most if not all Chinese and other tire manufacturers around the world do is to subscribe to and follow ISO quality guidelines in their plants. I am not trying to favor the Chinese product. I would much rather purchase an affordable American made product, but the so called American made stuff is often from ,Where else? China, Korea, Japan, or some other Pacific Rim country.