Haix..."Gays are supposed to be normal"
That is true in America. But this is SINGAPORE.
You think gays are normal, I think so too.
But most of the people here, especially religious ones, do not
think so.
No matter how one denies it, Singapore lacked freedom of speech,
and is far from an open society.
Thus in this case, there is a need for gays (especially teaching
professions) to step out.
Fact is they are being treated unfairly. Look up Section
377A.
Judging from the amount of misinformations you have in your post,
you seriously need to read the teacher's letter, understand the
issue here, then comment.