Only example can teach. You cannot teach by pointing out errors. If you want to teach, teach. If you want to teach, show a better way of doing things instead of wasting your breath on empty shouting while pounding the hollow box of your puffed-up chest.
The Son of God must choose for himself, just as you are doing, regardless of whether you imagine you have any authority to impose your will disguised as morality. If what you propose makes any sense, others will probably join you of their own free will.
Those who talk so much about the devil overlook the fact that the devil hides behind “knowledge”. “The devil knows more because he is old than because he is the devil,” as the saying goes. If your words reflect even the slightest hatred or rejection of the Son of God, it certainly will not be God speaking through your lips. And if it is not God, who else could it be? In truth, probably no one. Just an echo of something senseless.