No, I don't think so. I think National Lampoon's Christmas Vacation is a classic Christmas movie that captures the essence of family, love, and the holiday spirit. It shows us that even the most dysfunctional families can come together and find joy and unity during the holiday season. It also emphasizes the importance of laughter and embracing the silly moments of life. So, no, I don't think National Lampoon's Christmas Vacation ruins Santa at all! In fact, it makes him even more lovable and relatable.