I know its an open thread, but disagreements and mockery are not really necessary either.
Everything could be done in style - witness H. L. Mencken, or - much earlier - Francois Rabelais, or Giovanni Boccaccio. And a high quality mockery is sufficienly valuable to be preserved and passed down in history, which is only enriched by it. Thus it is a standard to which one could honorably aspire.
In 50 words or less explain why disagreement is a bad thing as you have insinuated.