First off, they hitch their LGB to the T wagon in what could be interpreted as a cynical ploy to prop up their ailing fundraising. Then they give out incorrect legal advice which led trans people to believe they had more rights than the law actually said they had, and then, when it came time to defend their interpretation of the law to the Supreme Court, they were a no show. Didn't apply to submit anything and now clowns like the Fox Killer are leading the charge.
Stonewall are an incredibly effective campaigning organization, but they have really gone awry here. I don't know why anyone on the T side would donate to them.