As a traditional Englishman, guess where I've met it:
Scotland
Ireland
Quebec
Miami
And in each case I wasn't really concerned. Things like this happen anywhere. Didn't hate the whole country as a result. Not justified at all. Usually the next person along was the opposite.
I do get a bit fed up with those who are constantly on patrol for any slight to their group. And likewise with those who feel any past history of discrimination against their predecessors entitles them to any special treatment nowadays. It doesn't.