Ethiopian immigrants do not face “structural racism,” which is a term that refers to the structural effects of past discrimination. They may face ordinary racism, i.e. discrimination in the present, but so do other groups. Ordinary discrimination doesn’t necessarily have structural effects.

I haven’t seen studies looking at Ethiopians specifically. But Nigerian and Ghanaian immigrants achieve comparable or better economic outcomes compared to whites. https://paa.confex.com/paa/2017/mediafile/ExtendedAbstract/P... (“Among persons aged 25 to 54, Ghanaian men do not differ from white men while Ghanaian and Nigerian women do not differ from white women in terms of occupational status after controlling for education, age, marital status, and the presence of children, but Nigerian men achieve higher occupational status than comparable white men.”). Note that this is controlling for education, so can’t be explained by saying these immigrants have higher education levels. And of course, racists can’t tell a Ghanaian person apart from an Ethiopian person.