Former Bravo star Jill Kargman has long skewered the gilded bubble of the Upper East Side of Manhattan — despite having grown up there, very much a creature of privilege, and she totally understands people’s enduring fascination with the center of affluence. “It’s like a particularly rarefied world,” she told Page Six. “You can walk down Park Avenue right now with the tulips and there is that aspirational quality. But there’s also a train wreck aspect to it.” Even as an insider, she understands that “people like peeking through the keyhole and seeing that rich people can be miserable, which I think is always a theme of my work. Jill Kargman, photographed in Central Park, loves skewering the elite of the Upper East Side. Emmy Park for NY Post She says she has never worried about alienating any of the modern Ladies Who Lunch. “I don’t give a s–t,” she said. “My stuff has always pissed some people off. I don’t care, I’m not, like, running for office.…