Dietary fat doesn’t cause obesity and it never has.
If you mix fat with sugar, you will gain weight. FACT.
If you eat meat/fat ONLY, you can lose weight.
You're missing the distinction.
- You can go high-carb/super low fat and lose weight (what athletes do). ...or...
- You can go high-fat/protein/super low carb and lose weight (i.e. Keto).
Pick one. If you mix fats and sugars, (especially plant fats) you will gain weight and have health issues.