Here in the UK the Haredi schools are all inclusive. The only specifically Sephardi school is 'manstream' rather than Haredi. Satmar has close ties to Yemenite Jews, for instance, and the Frankfurt style synagogue and schools has Sephardi members. Britain's Race Relations Act forbids ethnic discrimination.
Supreme Court rejects plea for freeze on expansion of asylum seekers' detention (Haaretz)
from the article: Comptroller probing charges of discrimination in Haredi schools