Stonewall did much good, once upon a time.
But now, as Cofty suggests, the fight for equality and acceptance is over, making Stonewall redundant in the West.
However, Stonewall *could* advocate for sexual freedoms in other countries and regimes around the globe.
There are 11 countries that currently punish consensual gay sex with the death penalty. I suggest Stonewall start from there ...
https://en.wikipedia.org/wiki/Death_penalty_for_homosexuality