Not as unusual as one might think Strippers having a Union, necessary these days with the constant lobbying by 3rd wave feminists to ban men having any kind of sexual pleasure, be it the consumption of Pornography or interaction with a consenting adult female!
Ironic considering the 2nd wave feminists fought for sexual freedom and for woman to use their bodies any way they wanted! The 2nd wave feminists tend to be called TERFS these days due to the current Gender wars!