If they comply with the protection standard (I think it is ANSI Z87.1?), it should not matter where it is made.
Now the question is whether the cloned frame can comply with ANSI Z87.1. Based on my experience with Chinese clone gears, NO.
Don't get me wrong, many things made in China have good quality, but ANSI Z87.1? No. The frame might be build soild (or not), but the company that made it won't pay to get it verified for ANSI Z87.1. Never gonna happen.
If they will get their products verified for industrial standards, they will make their own goggles instead of clones in the first place.