Tawheed is the key

Ibn Al-Qayyim said, “What good is there in a person who sees the sacred things of Allah being violated, His limits transgressed, His religion forsaken, the Sunnah of His Messenger neglected, and yet he remains indifferent, with a `cold heart’ and silenced tongue, like a silent devil. Such people, besides being despised by Allah, have been afflicted by the worst disease, namely the death of their hearts. For the more the heart is alive and vibrant, the more its anger for the sake of Allah and His Messenger is felt, and the stronger and more complete its support for the Deen.”

[Quoted in the Book; In pursuit of Allaahs pleasure]