Where ever they are made if they are a name brand they will be made under strict quality control.
The Chinese have the capability to make anything as good as the Named maker decides, or otherwise if it's a knock off.
I would not be worried if your Vortex Bino's have a "made in China or Philippines" label it is much better than having no label.
Winchester Model 70's are now assembled in Portugal as are my Leica's.
They are Vortex, I don't have Vortex but I believe they have a lifetime warranty
Don't sweat it, enjoy the difference.
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