Intresting. All the ones I’ve met in Canada are all Christians. I met one Eritrean who was Muslim thoEvery Eritrean I met in my city or most of them speak arabic. Most Eritreans here are also muslim. I asked some Eritreans why all of them or most of them speak arabic and they said it's because many Eritreans go through Sudan while immigrating and learn arabic there.
Sudan and Eritrea also border each other so that might influence it also. I hear Isaias also mention Sudan, @Shimbiris translate please.