Here's the answer from the USDA themselves: https://tellus.ars.usda.gov/stories/articles/how-we-store-ou...

The USDA claims the only countries that wash/refrigerate their eggs are the US, Canada, Japan, and Scandiland. The whole argument against washing the eggs is to protect against bacteria, salmonella among them. The thing they focus on primarily for the reason we still wash/refrigerate them is freshness. They carried out a study and found washed/refrigerated eggs were fresher after 15 weeks than those stored using other methods.