I literally said I don't believe in public shaming.

Literally? No. You said you're "not in the business of shaming people for that".

I said they should be ashamed of themselves.

Yes, you've said that multiple times in this public thread. Am I not to take that as public shaming? You're literally telling any/all fat people who might read your comments that they should be ashamed. That is public shaming.

Your cousin should be ashamed of himself to have reached that point.

No. You have no knowledge or understanding of his life and are in no place to talk about him. That's really rude.

without that shame he would never do that work

You have no way of knowing if internal or external shame played any role in his lifestyle changes and yet assume that you know.

Because being fat is shameful.

I disagree. I think it's shameful to publicly shame others for things which you cannot know or understand. You assume, and you assume the worst, like many others. That, I find to be shameful.

I can add being poor reading comprehension to your list of faults

Rude and arrogant.

including being okay with Nazi tattoos.

Well that's just a blatant strawman argument, as I've not mentioned nor responded to anything about nazi tattoos.