He may have come from them - but the International Churches of Christ are not the churches of Christ. I think they are the ones that are the cult.
I can't help it what you have heard - we are NOT THE INTERNATIONAL CHURCHES OF CHRIST. And, I would think that we know as we are the ones attending the church.
Kip McKean took a lot of mainline Church of Christs and infiltrated them and made them into ICofCs.