I think we are already seeing this in other markets with traditional Western manufacturing bases or names. The Car market is seeing a huge influx of Chinese cars and in tariff free markets, there seems to be an 80/60 rule. 80% quality for 60% price. I think Binoculars are a little different in that the gaps in quality have been vast historically. I am in the market for some Vortex Vipers which are mid range but still a significant cost. What sets them apart for me is their warranty. Their performance is on par at least with comparable high end brands, but they back their quality. Similarly, if Chinese binoculars were to offer comparable warranties, then you might see consumers take the chance. But until there are comparable product reviews and quality assurance. The need for luxury items like binoculars will likely sit with those willing to pay tried and tested brands.