I don't really have the time to watch an entire hour video, but I will comment on the first bit.

The high suicide rate is definitely because of discrimination, but not entirely. Oppression and gatekeeping prevents people from living the lives they desire, and when you are depressed about how you look, sound, are perceived, etc. It's definitely a combination, however the discrimination aspect is most of the problem, if not all of it.

I'd love to answer more questions, but if you wan't to ask (I am trans myself), and I appreciate you trying to understand. Feel free to ask if you have anything you want to know about.