'Conformity' just because they like something which is popular does not mean they're conforming, I'm sure they weren't like "oh my god yes everyone loves pizza so I do!!!".
Its just a stereotype of the whole basic white girl fad. Pizza has been my favorite food for as long as I remember but that doesn't mean I'm a "basic white girl" or "I'm following a trend" now just because a lot of other people suddenly are in love with it and post about it a lot.
I like tart and bitter foods, and I especially like greens like asparagus, lettuce and green beans. Usually I drink Kool Aid or coconut water/milk.