There is a distinction between racism and xenophobia, no need to assign the same label to everything. i.e. the thing about Italians was cultural an educated immigrant from Northern Italy would have been considered as white as a French (not that there a significant number of those in the US) at least.
Technically yes, but usually I think there’s a racist undercurrent to xenophobia.
The US stopped accepting refugees recently… except white South Africans. I’d say these people share no more culture or values with the average American than a Central American refugee. Maybe less. I’d much rather party with a bunch of Central or South Americans than a bunch of Apartheid lost causers.
If ethnically white people were pouring across the US border I don’t think many of our immigration hawks would care much, even if some were committing crimes.