I don't think addressing the guy like this works. In verbal sparring and public spats these guys have phds..kwanza a guy like Babu Owino has honed this to a science due to the 20 years (?) he spent as an undergraduate student.
I would never respond, just put them under investigation and sue mercilessly, no deals, no horse trading...to the end till someone is in jail for criminal incitement or goes bankrupt from all the defence legal fees.
Nothing slaps sense into a man like an empty wallet.
Or at least make one example. Just one politician jailed and all this slanderous talk and hate speech would disappear overnight...from whichever side, Jubilee or Nasa.