On Sunday, the Arab American National Museum will host Rock for Refugees, a concert to benefit the national campaign Take On Hate, as well as Freedom House Detroit, the nonprofit that helps new arrivals fleeing persecution. [...] Organizer Ismael Ahmed was inspired to hold the concert, he said, both by the rising hostility to immigrants and refugees nationwide, and the hopeful resistance that was sparked by the Women’s March and the airport protests over the president’s Muslim ban.