For the sake of this debate lets agree that what she is proud of is indeed authentic Jewish pride (which I agree is possible even without being observant) and not just a substituted nationality pride, nevertheless, in the way it was expressed, persevering to attend an utter Torah violating contest, how can one in his right mind call that very appearance "standing as a proud Jew"?
I'm not sure how to explain this. Have you ever met a Jew who has never kept a stitch of Torah u'mitzvos in their life, and has no intention of doing so, either, because they don't know what you know? Their pintele yid tells them they were born a Jew and that is important. That's it. Torah isn't part of their equation. You're going to tell me that because you know the importance of a Jew being shomer Torah u'mitzvos, therefore non-observant Jews can't have Jewish pride when it runs contrary to what you know to be true? Pride is a feeling, and you're trying to bring in facts (little known as they may be to 90% of Jews) to say the feelings aren't real. Is that fair?