It does not, however, follow that every point of view is equally valid merely by virtue of the fact that it exists. Nor does it follow that every point of view must necessarily be given the stamp of approval civilized society provides to those ideas thought worthy of curricular inclusion.
My subtle little point is that folks are getting their panties in a wad over a trivial issue. Is this issue the primary threat to the quality of public education, or the proper training of young minds? I think not. In fact, if young minds were properly trained, they would be well able to parse the merits of this tiresome and empty controversy, which is as much about a war over capturing semantical terms, as anything else.
The beauty of it all, is that you are exposed to the competing arguments, and if well educated, one can then make a reasoned judgment. I do that all the time about things I don't know about, or think I know about. What some hack teacher in high school said, or what some sticker on a text book said, is just a point of departure into inquiry.