Aah. What would it be called?/

If some people are grouping people in a country, and excluding them as punishment based on that ice ity, then what would it be called?

And isn’t it bad?
Like, would people support it if people asked for USAmerican developers to be excluded from apps aimed at children, because their president and former rulers were in groups with the pedo-trafficker Epstein and where they are even using a war(also for petrodollar, so not one objective only) to draw away attention?
Or started forking apps to exclude such developers?

What would it be called? Discrimination based on country of origin?