You are neither cold nor hot. This seems a little startling, to say the least. Christ is saying He prefers rejection of the faith to the kind of faith the Laodiceans have. Christ is saying He wants total commitment or no commitment at all. You see, featureless lukewarmness is worse, and more difficult to overcome, than complete alienation from or hostility to Christ.
Hostility is always easier to overcome than lethargy.
Christ doesn't say this because He hates the church of Laodicea. Rather, He says this because he cares for and loves the church. Parents who love their children, rebuke and discipline them when they do wrong. Not only that, but those parents also point their children in the right direction. Out of love and concern Christ does that for the church of Laodicea.