I'm one of those people who thinks people are animals, in the sense of being part of the animal kingdom.
So I find the PETA ads that treat human animals in a way that PETA would find unethical if these were other animals being humiliated, degraded or abused to be hypocritical.
Here's what PETA says it stands for:
Now, I am not in perfect agreement on some of these, but I want to focus on the ideas of "animals are not ours to experiment on" "animals are not ours to use for entertainment" and "animals are not ours to abuse in any way."
Using (fat human) animals for entertainment? Check.
Abusing (fat human) animals? Check.
Experimenting on (fat human) animals? Check, in the sense that there's no proof that becoming vegetarian makes fat people thin. Promoting this idea is in essence experimentation, exploring a controversial and unproven thesis -- even more unethical outside of the context of a controlled experiment, where the results can be measured and shared with the scientific community.
The first image -- well I really like that picture, I wouldn't mind looking like that in a bikini.
The middle ad is just, well, silly and unimaginative.
And the last one is hateful, and I would consider it hate speech.
The fact that these are billboards are all the more offensive.
PETA, if you want my support, and you could get it in many ways, you need to stop abusing ALL animals, including human ones. In the meantime, I'll find other organizations to support that fight cruelty against animals. Good luck with that alienating 70% of the population strategy you've got going.