I'm not shaming all fat people. Just the ones that only make excuses for their weight or pretend that it is healthy.

I couldn't be prouder or more supportive of an overweight person that decides enough is enough, takes ownership of their body, that they're going to lose weight and stick with it until they reach their goal.

To use your analogy, I don't care if someone drinks or smokes, but if they start pretending that it's not a choice they make it or that it's healthy, then yh, that's a problem and I don't think it's a bad thing to call them out for that.