1- Ethnic fundamentalism- This is an ideology that preaches for ethnic intolerance and cleansing against those who are perceived as new comers/settlers and the confiscation of their assets.. This was/is being practiced in Oromia, Benshangul and Amhara but you can find it every where in Ethiopia. This ideology is the root cause of killings of Amharas and others in Oromia, killings of Amharas in Benshangul and killing of Tigrayans in Amhara. We are witnessing also religious fundamentalism working embedded with the ethnic fundamentalism in Oromia which could give birth to a dangerous terrorist organization like Boko Haram of Nigeria.
2- One/Unified Ethiopia- This is an ideology that has been propagated by chauvinist Amharas. It looks the Abiy government has been hijacked by people with that vision. For the chauvinists an Ethiopia which is not governed in absolute control from the center and in accordance to the old values of the Showa feudalistic dynasty, that was buried by Mengistu Hailemariam in about 45 years ago , is wrong. They try to glorify their controversial kings like emperor Menelik but ignore or demonize leaders like Emerpror Yohannes and Meles Zenawi. PM Abiy is trying to resurrect the Showan dynasty but at the cost of disintegrating Ethiopia and civil war since Tigray and Oromos will not accept this governance model. As note the Amhara poeple and the "chauvinist Amharas" are too different and targeting the Amharas to fight the chauvinist ideology is totally wrong!
The TPLF/ EPRDF tried to come up with a governance model the avoids the two above models but has been partially successful. PM Abiy has to come up with an improved flexible governance structure that addresses the aspirations of nations and nationalities while enhancing the unity of Ethiopia