I have nothing against LGBT, but elementary school is not the appropriate place to learn about it.
Same, each to their own, but such content should be kept away from little children. Just my opinion.
Elementary or any schools for that matter should stay away from teaching any sort of material in-regards to what relationship is right or wrong. These institutions of learning have no reason to teach moral ethics as each teacher will push its own personal opinion and erode the parents responsibility for teaching of its own right or wrong, and from a religious doctrine point of view as well. They should just stick to teaching math, science, reading and history as that was there original modus operandi.
Last thing I would want my kid to read is how an air line pilot was riding chacha, and me having to explain that shit.