Irritated and annoyed by Kingsolver...

Did anyone already continue the Kingsolver reading? I'm kind of angry right now because I did...Throughout the novel, she more or less explicitly says: buy locally. Reduce the carbon footprint of your foot. Buy locally. Eat in season. Buy locally....like a mantra. I really like her writing style, the slight irony, and some of her descriptions make me want to harvest my own tomatoes and strawberries or to go and cook my own super delicious meal. But then chapter 15-17 happened. First of all, she flies with her husband to Italy on a vacation, and does not say anything about the fuel used by the plane. Being in Italy, she does not have huge problems to talk with natives about food for hours though she does not speak Italian. Her strategy: " I was going to be one of those Americans who traversed Italy with my forehead knit in concentration, divining words from their Latin roots and answering by wedging French cognates into Italian pronunciations spliced onto a standard Spanish verb conjugation" (244). I mean, really? I do not deny that there are some similarities between these languages but this upset me. It sounds so arrogant. Camille, by the way, seems to fly frequently, too...
And then, there is the chapter about celebration days. They prepare a large Thanksgiving meal but unfortunately do not have any cranberries because they grow farther north. And what do they do? They buy cranberries from Wisconsin because they think they really need them for the dinner. I can understand that some things are so traditionally important that you do not want to miss them. But it kind of goes against her philosophy. Oh, and their wheat is also not very locally grown but somewhere from Virginia...Kingsolver admits that it is frustrating not having a mill that meet their demands close to their town. But still.
I can follow her argumentation. As Kingsolver says, they are "converts in progress, not preachers" (282). But on the other hand, does not she always preach the high value of locally grown food, the value of preparing a meal together with the whole family? I feel badly tricked and cheated. These might be small things, but they highly irritate me and weaken my belief in the rest of the story.
A last thing, completely unrelated to the food: I'm not a very religious person, but it annoyed me how she kind of tauntingly talks about Christian religion and its holidays. It's okay if she does not believe in it, I don't believe in everything either, but should not she at least respect it?
Sorry for being so picky, maybe she just caught me at a bad moment, I hope it is going to be better in the last part.