I think Zebra did try some US-based manufacturing in the past but as I recall the "crap" issue with those lights was a less reliable switch, not bad anodizing. But maybe I'm mis-remembering.
As far as Zebra's ano goes, I've always like it. Its just natural, so yeah there's lots of color variation in it, but I like that. Solid jet black lights get boring after a while, cause everyone makes those. I'm happy to see some variation, even when it results in some color-mismatch, just to break up the monotony. Zebra's current production is a much more even gray color, leading me to think they're adding some light dye to the mix now, which is probably a good thing for sales, but I just hope they don't ever go solid black like everyone else.