"..... references to 2SLGBTQQIA [two-spirit, lesbian, gay, bisexual, transgender, queer, questioning, intersex and asexual] people."
Couldn't we simply have the acronym NHO? (Non Heterosexual Only)
.... or possibly NEH (Not Exclusively Hetero)
It would certainly be easier to say and write!
Seems to me that acronym changes every day. Your idea seems simpler.