How to fix dilution is by cleansing the men of Oromiya zone who are mostly Galla once you rlimate the men and send them to refugee camps in other country via displacement pure Amhara stock can reclaim Angot ETHIOSEMITE always habesha lands. Sterlize the men. It’s not hard to tell who’s Galla
Then send Amhara men in nearby kutaber Dessie Zuriaw And Habru Ambassel to have Amhara children in the land and marry as much women as possible
My theory will reclaim the edge lowlands of Wollo back into Amhara domains