Yes there is a prioritization of one groups rights over another and if you don't see that you need to look more careful.
Do you think it's easy being fat, Ugly, Short, Stupid, Too skinny?
You are proving my point.
Supporting one group but not another i.e. putting resources into fighting for the acceptance of one group but not another is the very difintion of prioritization.
How many more fat people do you think there are than LGBTQ+
The right thing to do is accept them all, not focus on one group instead of another. Treat them as humans give them the same rights, treat them with equal respect, because they are human not because they are gay or straight or black or white or asian or fat etc.
It's about what I feel it's about what it is by definition when a workplace prioritizes the hardship of one group and not another. It goes deep into the corporate culture when it comes to hiring and decisions of who gets which position in the company etc.
Thats exactly the opposite of what humanism is. It doesn't divide it includes it doesn't prioritize it simply treat everyone the same and that is not done by making on groups hardships more important than others. At least not in any form of humanism I am prepared to support.