I am not sure that I understand your argument here: are you saying a person who is against animal testing shouldn't consume products that were tested on animals during their development? If that's the case I think that would be an unattainable standard of morality. Everything we are as a society and as individuals are in part thanks to our use of animals, and I don't think any PETA member denies this fact.

Even if this person abandoned all her belongings and moved to the middle of nowhere, all her knowledge is still the direct product of societies that have been using animals for (at least) the past 10,000 years.