It's a failure to recognize trans/gender ideology as a religion. Traditional religions revolve around worship of a deity/deities or some kind of spirituality where the self is set into a greater spiritual or nature based realm or energy etc. Trans ideology is worship of the self and places maximum importance on the random dumb thoughts inside their heads. Some of it is sort of like an inner realm where they create various alternative realities.

A way to think about it is like drawing a dotted line around your brain. A traditional religious view worships everything outside the dotted line and recognizes the insignificance of the individual but they still tend to make up weird rules to describe things which can't be understood. The gender religion inverts that and views everything outside the dotted line as insignificant at the expense of the individual.