Is mungiki back ?

The OP is a good hekayarist but he can do better by fine-tuning his narrations

Kwani they ever left ?

They are not necessarily Mungiki, hao ni thaaai guys probably, the Karuri wa Gakure sect. Very peaceful actually.

You are confused actually. They have never stopped but its optional/voluntary. They are also polygamous.

Btw hakuna anything wrong with worshipping God in your own way but we always demonize African religions whereas we comfortably praise other race methods.