I actually am a calorie counter, and I'm losing weight at a nice rate. But straight up calorie counting is easy to crash from because if you continue to eat garbage, you will continue to want food. All the low carb really does is to sate you.
Think of it this way: The only way most people can quit an addiction is cold turkey. Unfortunately, you can't quit food forever or you'll die. You have to control it. If you continue to eat just a "little bit" of foods that make you hungry, you'll give in to temptation eventually. Just like if you let yourself have one cigarette occasionally, it can easily turn to two, then "just when I go out with the guys/girls," etc.
Yes, all overweight people are eating more fuel than they need based on their genetics, metabolism, and lifestyle. But that's not sloth or lack of character. Nor is it easily fixed. One of the richest, most successful women in this country has battled with weight and diet her whole life and she's certainly neither sloth nor slacker.