Western v Eastern is just good optics.
It nonsense in our ETHNIC BASED PREDICTIVE MODELLING.
You have written lot of wishful nonsense based on East and West nonsense.
This thing will as always be tribal.
Any maths where Ruto-Raila are working as unit - no need to continue doing the maths.
Both Raila and Ruto have NATIONAL SUPPORT - each easily getting 30-35%.
National support from all tribes - from all 47 counties.
Matiangi is political neophytes who at best will only fly amongst Mt kenya (mainly Kikuyu).
Outside he is nothing - you will need governors/mps/mcas battling for you camp say in Kwale - he is absent.
Kalonzo generally faces the same Matiangi mess.
To build national support is not easy.
The problem most Mt kenya leaders are too insular to build national support.
In short no need for MOASS unless I see Ruto versus Raila.
Ruto will be very happy to face Matiangi or Kalonzo or any other looser.
He has to be working on Plan A - facing Raila Odinga - Uhuru and Kikuyus seem bitter enough to try anything.
Ruto will encourage Matiangi to run so he can snatch Kalonzo.
Ruto has to work to get Kalonzo and Kambas as Plan C - if Kindiki fails to fly like its looking like - and if Raila bolt out last minute.
For Ruto plan A should be to win presidency without kikuyus and Raila - and that means finding replacement about 20% that Mt kenya have left has a void. He needs to play with Deputy Presidency for someone who can deliver 10% at least. MaDVD cant. Weta cant. Kalonzo could. Kindiki could. Then he will hunt for 10% by expanding areas he did badly - which was almost all counties outside Mt Kenya & Kalenjin - where Raila was beating him by 70% to 30%; he needs to flip that using incumbency.
Correction - Nyachae got 6% of the vote in 2002. Not 4%.
And Kalonzo got 9%, not 8%.
In essence, switching from Kalonzo to Matiang'i is a drop of 3%.
So why is WSR and his team running scared of Matiang'i when he brings less votes than Melon?
1) A Kalonzo candidature optically splits Kenya into Eastern vs Western. Kalonzo representing Eastern Kenya with their Mt Kenya cousins, while WSR representing the Western Alliance (RV + Western + Nyanza). In such a scenario, WSR clinches an easy win.
2) A Matiang'i candidature splits the Western Alliance that WSR is putting together (he intends to run on an ODM ticket with an ODM running mate). Matiang'i captures the Kisii vote + half of the Luhya vote while maintaining the Central Kenya vote.
3) Even if Kalonzo were to shift to WSR, Matiang'i polls better in Ukambani than WSR cos of no 4) below.
4) The electorate seems tired of the same old rigmarole of politicians (hence the low voter turnout in 2022). Matiang'i has never run for any office; is a fresh first time candidate who comes with a proven background of competence and execution. As in if he says he is doing something, the guy will do everything to make it happen. Magufuli style.
5) The Gen Z vote resonates and rhymes better with Matiang'i than with any other candidate.
HENCE the clear panic in the WSR camp