hmm, I'm going to try to calilbrate my view of the community here by guessing the reasons this is currently at -5 karma:
45% Misusing 'rational' for something that isn't particularly about rationality
40% Overly american-centric linkage with patriotism, freedom, and rationality leading to percieved contradictions
10% Contrarian sticking up for Christians for the unsubstantianted hypocrisy charge
5% Past quarrels bleeding over
To me the most plausible explanation of why anyone would write that comment is trolling. I can't quite imagine someone writing it using the same words for different reasons.
As a comparison, here is a (fictional) comment I could even upvote if I saw it in a Group Rationality Diary:
...My father and I decided to create a secular version of Christmas. We love to exchange gifts, but we are not religious, so we tried to remove as much of the religious context as possible. We even moved the date to Dec 31st, as a symbol of ending the old year and a hopeful beginni
If it's worth saying, but not worth its own post (even in Discussion), then it goes here.