Disunity?

Just a brief thought: Cardinal Raymond Burke (a true defender of the Catholic faith) is apparently being "punished" for being a source of "disunity" in the Church. This assessment is given because he has spoken out against many of the things that Pope Francis has said and done. Is a man who calls Catholics to remain true to the unchanging deposit of faith that was given to the Catholic Church through the Apostles a "source of disunity"? Or, rather, is someone (anyone) who encourages Catholics to abandon any aspect (and I mean any aspect) of the Catholic faith the real source of "disunity"?