According to Wikipedia, as to the distribution of this condition,
> The birthmark is prevalent among East, South, Southeast, North and Central Asian peoples, Indigenous Oceanians (chiefly Micronesians and Polynesians), certain populations in Africa, Amerindians, non-European Latin Americans and Caribbeans of mixed-race descent.
So you can see how, in a Western European nation, even if no-one is being biased in the sense of "hating foreigners", the false accusations would cluster in "non-indigenous" populations, for want of a better word (I originally had "immigrants" then realised that isn't the correct split I'm looking for.). Personally I believe there is no defense for doctors, courts and social workers not knowing about this and checking for it before making any accusations.
This doesn't seem to apply to Romanians / Eastern Europeans specifically, unless they have partly Asian ancestry, but it does show that there are conditions that can be mistaken for abuse that appear in some cultures more than others.