There is no influx as far as i know. Amhara and Oromo only make up like 1-2% of the population in the Somali region. Almost all government positions are occupied by Somalis and the private sector is lead and run by local Somalis
Somalis pay taxes and get free education, health care, and development. That's why they tax compliance has increased.
Liyu police doesn't exist anymore after they outsted TPLF thug Abdi Iley in 2018 they disbanded it, there is no killings, rape or theft in the Somali region.
It's the most peaceful region in all of Ethiopia for more than 6 years now.
Five years ago, on 21 October 2018, the Government of Ethiopia and the Ogaden National Liberation Front (ONLF) signed the Asmara Peace Deal - an historic occasion marking the end of over 30 years of armed conflict in the Somali Regional State of Ethiopia (SRS). But a peace deal isn’t an...
www.c-r.org
Before 2018 it was ruled by the TPLF military government, since after it's been by ruled by local civilian government.
Read this it take you down the political development timeline: