I've known a lot of gay people over my life time, and just about none (even the most flaming ones) went out of their way to 'advertise' their gayness with copious rainbow flags, love wins posters, or mentioning that they were gay. Only one guy had a tiny flag pin, but other then that, not really much. Most you would only know were gay unless you asked, or caught them talking to their partner on a cell phone or something.
Now Amber does the opposite. She goes out of her way to 'advertise' her being 'lezbean.' Posters, doodling, bringing it up or outright showing off some rainbow covered stuff every five or six videos, not even Becky or E&R do this stuff to the extent of Big Al.
Reason why I say this is because it makes me feel like it's a just persona Big Al wears. No real gay person I've ever known did the overdone shit Big Al does, it's like she is trying to 'prove' her to her audience and herself her gay credentials.
To me, it genuinely feels like it is just another narc thing, that it is a way to reel in young or emotionally vulnerable women who won't question much and who are too damaged to put up much of a resistance to a narc's emotional manipulation (and possibly abuse.) There is also the added bonus for her that gays are considered Woobies right now, so cue in the victim points, Muh Oppression, and opportunities for her to blame other people for her issues because 'homophobia' and it is a narc's ego stroking and wet dream come true.