He should worry more about loosing Raila GEMA voters because when he injures Kikuyu leaders like Mureithi he re-start kikuyu-Luo battles in Nairobi slums and elsewhere. He reminds people of violence brand that Raila is running away.
He should take a cue from RV - where no matter the provocation from Uhuru and company - folks are as cool as cucumber- Martha walked the breath and depth of Eldoret - not a heckle - Kalenjin are under strict instruction to welcome AZIMIO with warm class of tea if they cannot dignify them with a gourd of milk. Obviously things could flip if Ruto was rigged out or harmed in any way.
Now such violence can easily take ethnic tone - because it's will be assumed it's Luo gangs attacking Kikuyu.
Ruto hayuko Nairobi. Apart from Generali in Langata - UDA supporters in Nairobi are mostly GEMA underclass.
If ODM makes it violent - they will lose voters in GEMA.