That is such a close minded simplictic view of the situation! It seems pretty obvious that you have never been a member of a group which is sensitive to such an issue. I believe too, that in many cases political correctness can go too far, but saying that "they're just words" is the statement of a simpleton.
The problem that these words are not being used in their true sense, but have instead developed conotations which in some situations can make them very offensive; or that they are being used in conotative context, and the their true sense is offensive.
If you want to use these terms among your own social group, that's perfectly fine, I know I do. But I also know that I can do it while safely knowing just how any given term will be interpretted. Unfortunately, on a public forum like this, you can never be sure who's reading your posts, what their personal background is, or how your thoughts will be interpretted in what is, for the most part, a tone-less medium.
On here we just need to be careful what we say (witin reason). If you really can't express your dislike for something without resorting to the use of the word "gay" I suggest you purchase a thesaurus and dictionary.