Quote ="Dally"Notion derived from seeing a couple of same sex individuals kissing on a TV programme when she was little. Her reaction was adverse and it has stuck since.'"
That was the point where you had the opportunity to explain that it's not compulsory and not wrong either.
Did you do that?
Did you?
Quote ="Dally"No, what amuses me is consideration of the PC angle on all this not the events themselves.'"
Your amusement and your use of the term "PC angle" highlights your own prejudice, nothing else.
"PC" is always used as a pejorative, usually from a reactionary like you, I have never heard anyone claiming to be PC.
Quote ="Dally"...The other issue here is, of course, the "Gove" issue I mentioned in the OP. Why are kids with such problems being "taught" this nonsense when learning the basics of life would be more sensible? Why should someone's sexuality be a matter for schools to "teach"? It is frankly ridiculous.'"
Read this back to yourself and ponder whether term "this nonsense" illustrates your own attitude and whether the missed opportunity, mentioned above, has informed/reinforced your daughter's views.
My best guess is that you have instilled/reinforced an intolerance in your daughter and the school is having to do what you didn't do and, worse, undo what you did.