That is not at all what he was saying. Sam Richards told students “we are all at some level nonbinary”(not true) and called on all heterosexual students to “watch gay or lesbian pornThis thread is about "grooming children" as far as I can tell. That story is not about children, it is about adults.
Second: the story does not say the professor is trying to coax students (adults btw) to be bisexual. He was saying to ADULTS that is ok to discover your sexuality. Do you thing that is wrong? I don't see what the issue is. I think some of you may be afraid that if you hear the right words, you will become gay.
I don's see any gaslighting in that story (about adults). I see a lot of gaslighting in this thread about other subjects though.
That is very different than saying it is ok to discover your sexuality.